{
 "format": "takeoffcraft-pack",
 "version": 1,
 "id": "trade.drywall-framing",
 "name": "Drywall and framing",
 "packVersion": "0.1.0",
 "trade": "Drywall and framing",
 "description": "Gypsum board partitions by height (8, 9, 10, 12 ft) and layers on steel or wood studs, wall linings, ceilings, corner bead and trim, exterior 2x6 walls and rough openings. Assemblies only: set your own rates.",
 "author": "CadCraft",
 "license": "CC0-1.0",
 "status": "starter",
 "homepage": "https://getcadcraft.com/addons?kind=pack",
 "csi": [
  "06 11 00",
  "09 21 16",
  "09 22 16"
 ],
 "sources": [
  {
   "id": "ga-216",
   "title": "GA-216, Application and Finishing of Gypsum Panel Products",
   "publisher": "Gypsum Association",
   "url": "https://www.gypsum.org/"
  },
  {
   "id": "irc-r702",
   "title": "International Residential Code, Section R702 Interior Covering (gypsum board application, Table R702.3.5)",
   "edition": "2021",
   "publisher": "International Code Council",
   "url": "https://codes.iccsafe.org/"
  },
  {
   "id": "astm-c754",
   "title": "ASTM C754, Standard Specification for Installation of Steel Framing Members to Receive Screw-Attached Gypsum Panel Products",
   "publisher": "ASTM International",
   "url": "https://www.astm.org/"
  },
  {
   "id": "geometry",
   "title": "Plain geometry: the quantity follows from the measured length, height or area and the stated module (no outside source needed)"
  },
  {
   "id": "irc-r602",
   "title": "International Residential Code, Section R602 Wood Wall Framing",
   "edition": "2021",
   "publisher": "International Code Council",
   "url": "https://codes.iccsafe.org/"
  },
  {
   "id": "irc-r703",
   "title": "International Residential Code, Section R703 Exterior Covering (water-resistive barrier, siding attachment, anchored veneer ties)",
   "edition": "2021",
   "publisher": "International Code Council",
   "url": "https://codes.iccsafe.org/"
  }
 ],
 "items": [
  {
   "key": "part-steel-12-1x1-8",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 1/2 in, one layer each side, steel studs 3-5/8 in at 16 in o.c., 8 ft high",
   "unit": "LF",
   "twin": "part-steel-12-1x1-8-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 8
  },
  {
   "key": "part-steel-12-1x1-8-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 12.7 mm, one layer each side, steel studs 92 mm at 406 mm o.c., 2.44 m high",
   "unit": "m",
   "twin": "part-steel-12-1x1-8",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 8.00524934383202
  },
  {
   "key": "part-steel-58x-1x1-8",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 5/8 in type X, one layer each side, steel studs 3-5/8 in at 16 in o.c., 8 ft high",
   "unit": "LF",
   "twin": "part-steel-58x-1x1-8-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 5/8 in type X, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 8
  },
  {
   "key": "part-steel-58x-1x1-8-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 15.9 mm type X, one layer each side, steel studs 92 mm at 406 mm o.c., 2.44 m high",
   "unit": "m",
   "twin": "part-steel-58x-1x1-8",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 15.9 mm type X, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 8.00524934383202
  },
  {
   "key": "part-steel-58x-2x2-8",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste.",
    "Two layers: both layers screwed at the face-layer spacing; only the face layer is taped and finished."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 5/8 in type X, two layers each side, steel studs 3-5/8 in at 16 in o.c., 8 ft high",
   "unit": "LF",
   "twin": "part-steel-58x-2x2-8-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 5/8 in type X, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*4/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*4*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 8
  },
  {
   "key": "part-steel-58x-2x2-8-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste.",
    "Two layers: both layers screwed at the face-layer spacing; only the face layer is taped and finished."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 15.9 mm type X, two layers each side, steel studs 92 mm at 406 mm o.c., 2.44 m high",
   "unit": "m",
   "twin": "part-steel-58x-2x2-8",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 15.9 mm type X, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*4/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*4*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 8.00524934383202
  },
  {
   "key": "part-wood-12-1x1-8",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "irc-r602",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Plates: one bottom plate and a double top plate (IRC R602.3.2).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 1/2 in, one layer each side, wood studs 2x4 at 16 in o.c., 8 ft high",
   "unit": "LF",
   "twin": "part-wood-12-1x1-8-m",
   "components": [
    {
     "name": "Wood plates 2x4 (one bottom, two top)",
     "unit": "LF",
     "formula": "L*3",
     "waste": 1000
    },
    {
     "name": "Wood studs 2x4, wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 1000
    },
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 8
  },
  {
   "key": "part-wood-12-1x1-8-m",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "irc-r602",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Plates: one bottom plate and a double top plate (IRC R602.3.2).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 12.7 mm, one layer each side, wood studs 38 x 89 mm at 406 mm o.c., 2.44 m high",
   "unit": "m",
   "twin": "part-wood-12-1x1-8",
   "components": [
    {
     "name": "Wood plates 38 x 89 mm (one bottom, two top)",
     "unit": "m",
     "formula": "L*3",
     "waste": 1000
    },
    {
     "name": "Wood studs 38 x 89 mm, wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 1000
    },
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 8.00524934383202
  },
  {
   "key": "lining-12-1-8",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Wall linings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum lining, 1/2 in, one layer one side, 8 ft high",
   "unit": "LF",
   "twin": "lining-12-1-8-m",
   "components": [
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*1/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*1*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*1*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*1*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 8
  },
  {
   "key": "lining-12-1-8-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Wall linings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum lining, 12.7 mm, one layer one side, 2.44 m high",
   "unit": "m",
   "twin": "lining-12-1-8",
   "components": [
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*1/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*1*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*1*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*1*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 8.00524934383202
  },
  {
   "key": "part-steel-12-1x1-9",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 1/2 in, one layer each side, steel studs 3-5/8 in at 16 in o.c., 9 ft high",
   "unit": "LF",
   "twin": "part-steel-12-1x1-9-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 9
  },
  {
   "key": "part-steel-12-1x1-9-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 12.7 mm, one layer each side, steel studs 92 mm at 406 mm o.c., 2.74 m high",
   "unit": "m",
   "twin": "part-steel-12-1x1-9",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 8.989501312335959
  },
  {
   "key": "part-steel-58x-1x1-9",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 5/8 in type X, one layer each side, steel studs 3-5/8 in at 16 in o.c., 9 ft high",
   "unit": "LF",
   "twin": "part-steel-58x-1x1-9-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 5/8 in type X, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 9
  },
  {
   "key": "part-steel-58x-1x1-9-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 15.9 mm type X, one layer each side, steel studs 92 mm at 406 mm o.c., 2.74 m high",
   "unit": "m",
   "twin": "part-steel-58x-1x1-9",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 15.9 mm type X, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 8.989501312335959
  },
  {
   "key": "part-steel-58x-2x2-9",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste.",
    "Two layers: both layers screwed at the face-layer spacing; only the face layer is taped and finished."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 5/8 in type X, two layers each side, steel studs 3-5/8 in at 16 in o.c., 9 ft high",
   "unit": "LF",
   "twin": "part-steel-58x-2x2-9-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 5/8 in type X, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*4/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*4*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 9
  },
  {
   "key": "part-steel-58x-2x2-9-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste.",
    "Two layers: both layers screwed at the face-layer spacing; only the face layer is taped and finished."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 15.9 mm type X, two layers each side, steel studs 92 mm at 406 mm o.c., 2.74 m high",
   "unit": "m",
   "twin": "part-steel-58x-2x2-9",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 15.9 mm type X, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*4/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*4*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 8.989501312335959
  },
  {
   "key": "part-wood-12-1x1-9",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "irc-r602",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Plates: one bottom plate and a double top plate (IRC R602.3.2).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 1/2 in, one layer each side, wood studs 2x4 at 16 in o.c., 9 ft high",
   "unit": "LF",
   "twin": "part-wood-12-1x1-9-m",
   "components": [
    {
     "name": "Wood plates 2x4 (one bottom, two top)",
     "unit": "LF",
     "formula": "L*3",
     "waste": 1000
    },
    {
     "name": "Wood studs 2x4, wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 1000
    },
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 9
  },
  {
   "key": "part-wood-12-1x1-9-m",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "irc-r602",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Plates: one bottom plate and a double top plate (IRC R602.3.2).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 12.7 mm, one layer each side, wood studs 38 x 89 mm at 406 mm o.c., 2.74 m high",
   "unit": "m",
   "twin": "part-wood-12-1x1-9",
   "components": [
    {
     "name": "Wood plates 38 x 89 mm (one bottom, two top)",
     "unit": "m",
     "formula": "L*3",
     "waste": 1000
    },
    {
     "name": "Wood studs 38 x 89 mm, wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 1000
    },
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 8.989501312335959
  },
  {
   "key": "lining-12-1-9",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Wall linings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum lining, 1/2 in, one layer one side, 9 ft high",
   "unit": "LF",
   "twin": "lining-12-1-9-m",
   "components": [
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*1/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*1*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*1*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*1*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 9
  },
  {
   "key": "lining-12-1-9-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Wall linings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum lining, 12.7 mm, one layer one side, 2.74 m high",
   "unit": "m",
   "twin": "lining-12-1-9",
   "components": [
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*1/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*1*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*1*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*1*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 8.989501312335959
  },
  {
   "key": "part-steel-12-1x1-10",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 1/2 in, one layer each side, steel studs 3-5/8 in at 16 in o.c., 10 ft high",
   "unit": "LF",
   "twin": "part-steel-12-1x1-10-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 10
  },
  {
   "key": "part-steel-12-1x1-10-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 12.7 mm, one layer each side, steel studs 92 mm at 406 mm o.c., 3.05 m high",
   "unit": "m",
   "twin": "part-steel-12-1x1-10",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 10.006561679790025
  },
  {
   "key": "part-steel-58x-1x1-10",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 5/8 in type X, one layer each side, steel studs 3-5/8 in at 16 in o.c., 10 ft high",
   "unit": "LF",
   "twin": "part-steel-58x-1x1-10-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 5/8 in type X, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 10
  },
  {
   "key": "part-steel-58x-1x1-10-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 15.9 mm type X, one layer each side, steel studs 92 mm at 406 mm o.c., 3.05 m high",
   "unit": "m",
   "twin": "part-steel-58x-1x1-10",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 15.9 mm type X, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 10.006561679790025
  },
  {
   "key": "part-steel-58x-2x2-10",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste.",
    "Two layers: both layers screwed at the face-layer spacing; only the face layer is taped and finished."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 5/8 in type X, two layers each side, steel studs 3-5/8 in at 16 in o.c., 10 ft high",
   "unit": "LF",
   "twin": "part-steel-58x-2x2-10-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 5/8 in type X, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*4/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*4*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 10
  },
  {
   "key": "part-steel-58x-2x2-10-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste.",
    "Two layers: both layers screwed at the face-layer spacing; only the face layer is taped and finished."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 15.9 mm type X, two layers each side, steel studs 92 mm at 406 mm o.c., 3.05 m high",
   "unit": "m",
   "twin": "part-steel-58x-2x2-10",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 15.9 mm type X, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*4/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*4*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 10.006561679790025
  },
  {
   "key": "part-wood-12-1x1-10",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "irc-r602",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Plates: one bottom plate and a double top plate (IRC R602.3.2).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 1/2 in, one layer each side, wood studs 2x4 at 16 in o.c., 10 ft high",
   "unit": "LF",
   "twin": "part-wood-12-1x1-10-m",
   "components": [
    {
     "name": "Wood plates 2x4 (one bottom, two top)",
     "unit": "LF",
     "formula": "L*3",
     "waste": 1000
    },
    {
     "name": "Wood studs 2x4, wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 1000
    },
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 10
  },
  {
   "key": "part-wood-12-1x1-10-m",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "irc-r602",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Plates: one bottom plate and a double top plate (IRC R602.3.2).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 12.7 mm, one layer each side, wood studs 38 x 89 mm at 406 mm o.c., 3.05 m high",
   "unit": "m",
   "twin": "part-wood-12-1x1-10",
   "components": [
    {
     "name": "Wood plates 38 x 89 mm (one bottom, two top)",
     "unit": "m",
     "formula": "L*3",
     "waste": 1000
    },
    {
     "name": "Wood studs 38 x 89 mm, wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 1000
    },
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 10.006561679790025
  },
  {
   "key": "lining-12-1-10",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Wall linings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum lining, 1/2 in, one layer one side, 10 ft high",
   "unit": "LF",
   "twin": "lining-12-1-10-m",
   "components": [
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*1/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*1*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*1*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*1*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 10
  },
  {
   "key": "lining-12-1-10-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Wall linings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum lining, 12.7 mm, one layer one side, 3.05 m high",
   "unit": "m",
   "twin": "lining-12-1-10",
   "components": [
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*1/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*1*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*1*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*1*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 10.006561679790025
  },
  {
   "key": "part-steel-12-1x1-12",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 1/2 in, one layer each side, steel studs 3-5/8 in at 16 in o.c., 12 ft high",
   "unit": "LF",
   "twin": "part-steel-12-1x1-12-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 12
  },
  {
   "key": "part-steel-12-1x1-12-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 12.7 mm, one layer each side, steel studs 92 mm at 406 mm o.c., 3.66 m high",
   "unit": "m",
   "twin": "part-steel-12-1x1-12",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 12.007874015748031
  },
  {
   "key": "part-steel-58x-1x1-12",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 5/8 in type X, one layer each side, steel studs 3-5/8 in at 16 in o.c., 12 ft high",
   "unit": "LF",
   "twin": "part-steel-58x-1x1-12-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 5/8 in type X, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 12
  },
  {
   "key": "part-steel-58x-1x1-12-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 15.9 mm type X, one layer each side, steel studs 92 mm at 406 mm o.c., 3.66 m high",
   "unit": "m",
   "twin": "part-steel-58x-1x1-12",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 15.9 mm type X, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 12.007874015748031
  },
  {
   "key": "part-steel-58x-2x2-12",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste.",
    "Two layers: both layers screwed at the face-layer spacing; only the face layer is taped and finished."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 5/8 in type X, two layers each side, steel studs 3-5/8 in at 16 in o.c., 12 ft high",
   "unit": "LF",
   "twin": "part-steel-58x-2x2-12-m",
   "components": [
    {
     "name": "Steel track 3-5/8 in (top and bottom)",
     "unit": "LF",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 3-5/8 in, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 5/8 in type X, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*4/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*4*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 12
  },
  {
   "key": "part-steel-58x-2x2-12-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "astm-c754",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste.",
    "Two layers: both layers screwed at the face-layer spacing; only the face layer is taped and finished."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 15.9 mm type X, two layers each side, steel studs 92 mm at 406 mm o.c., 3.66 m high",
   "unit": "m",
   "twin": "part-steel-58x-2x2-12",
   "components": [
    {
     "name": "Steel track 92 mm (top and bottom)",
     "unit": "m",
     "formula": "L*2",
     "waste": 500
    },
    {
     "name": "Steel studs 92 mm, cut to wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 500
    },
    {
     "name": "Gypsum board 15.9 mm type X, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*4/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*4*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 12.007874015748031
  },
  {
   "key": "part-wood-12-1x1-12",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "irc-r602",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Plates: one bottom plate and a double top plate (IRC R602.3.2).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 1/2 in, one layer each side, wood studs 2x4 at 16 in o.c., 12 ft high",
   "unit": "LF",
   "twin": "part-wood-12-1x1-12-m",
   "components": [
    {
     "name": "Wood plates 2x4 (one bottom, two top)",
     "unit": "LF",
     "formula": "L*3",
     "waste": 1000
    },
    {
     "name": "Wood studs 2x4, wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 1000
    },
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*2*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*2*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 12
  },
  {
   "key": "part-wood-12-1x1-12-m",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Partitions",
   "sources": [
    "ga-216",
    "irc-r702",
    "irc-r602",
    "geometry"
   ],
   "assume": [
    "Studs at 16 in o.c.: ceil(0.75 x length) + one end stud per run; no extra studs for corners, intersections or openings (count those as rough openings).",
    "Plates: one bottom plate and a double top plate (IRC R602.3.2).",
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum partition, 12.7 mm, one layer each side, wood studs 38 x 89 mm at 406 mm o.c., 3.66 m high",
   "unit": "m",
   "twin": "part-wood-12-1x1-12",
   "components": [
    {
     "name": "Wood plates 38 x 89 mm (one bottom, two top)",
     "unit": "m",
     "formula": "L*3",
     "waste": 1000
    },
    {
     "name": "Wood studs 38 x 89 mm, wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 1000
    },
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*2/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*2*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*2*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*2*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 12.007874015748031
  },
  {
   "key": "lining-12-1-12",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Wall linings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum lining, 1/2 in, one layer one side, 12 ft high",
   "unit": "LF",
   "twin": "lining-12-1-12-m",
   "components": [
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A*1/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*1*0.875)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*1*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*1*0.01",
     "waste": 1000
    }
   ],
   "heightFt": 12
  },
  {
   "key": "lining-12-1-12-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Wall linings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF); the metric twin uses 1220 x 2440 mm (2.98 m²). Change the 32 / 2.98 for other sheet sizes.",
    "Screws: 0.875 per SF of board on walls (28 per sheet: studs 16 in o.c., screws 16 in o.c.).",
    "Tape: 0.375 LF per SF of finished board (12 LF of joint per 4 x 8 sheet).",
    "Joint compound: 0.01 gal per SF of finished board — a starting figure; take the coverage from your product data sheet.",
    "No deduction for openings: draw door and window openings as deducts on the run, or lower the waste."
   ],
   "note": "Measure the wall run (linear); the item height is the wall height (A = run x height, one side). Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum lining, 12.7 mm, one layer one side, 3.66 m high",
   "unit": "m",
   "twin": "lining-12-1-12",
   "components": [
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A*1/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*1*9.42)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*1*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*1*0.4074",
     "waste": 1000
    }
   ],
   "heightFt": 12.007874015748031
  },
  {
   "key": "ceiling-12",
   "type": "area",
   "csi": "09 21 16",
   "group": "Ceilings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF), metric 1220 x 2440 mm (2.98 m²).",
    "Screws: 1.094 per SF (35 per sheet: sheets across framing 16 in o.c., screws 12 in o.c. on ceilings, IRC Table R702.3.5).",
    "Tape: 0.375 LF per SF; joint compound 0.01 gal per SF (a starting figure: use your product data sheet).",
    "Framing or furring is not included: add it as its own item."
   ],
   "note": "Measure the ceiling area. Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum board ceiling, 1/2 in, on framing 16 in o.c.",
   "unit": "SF",
   "twin": "ceiling-12-m",
   "components": [
    {
     "name": "Gypsum board 1/2 in, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*1.094)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*0.01",
     "waste": 1000
    }
   ]
  },
  {
   "key": "ceiling-12-m",
   "type": "area",
   "csi": "09 21 16",
   "group": "Ceilings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF), metric 1220 x 2440 mm (2.98 m²).",
    "Screws: 1.094 per SF (35 per sheet: sheets across framing 16 in o.c., screws 12 in o.c. on ceilings, IRC Table R702.3.5).",
    "Tape: 0.375 LF per SF; joint compound 0.01 gal per SF (a starting figure: use your product data sheet).",
    "Framing or furring is not included: add it as its own item."
   ],
   "note": "Measure the ceiling area. Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum board ceiling, 12.7 mm, on framing 406 mm o.c.",
   "unit": "m²",
   "twin": "ceiling-12",
   "components": [
    {
     "name": "Gypsum board 12.7 mm, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*11.776)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*0.4074",
     "waste": 1000
    }
   ]
  },
  {
   "key": "ceiling-58x",
   "type": "area",
   "csi": "09 21 16",
   "group": "Ceilings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF), metric 1220 x 2440 mm (2.98 m²).",
    "Screws: 1.094 per SF (35 per sheet: sheets across framing 16 in o.c., screws 12 in o.c. on ceilings, IRC Table R702.3.5).",
    "Tape: 0.375 LF per SF; joint compound 0.01 gal per SF (a starting figure: use your product data sheet).",
    "Framing or furring is not included: add it as its own item."
   ],
   "note": "Measure the ceiling area. Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum board ceiling, 5/8 in type X, on framing 16 in o.c.",
   "unit": "SF",
   "twin": "ceiling-58x-m",
   "components": [
    {
     "name": "Gypsum board 5/8 in type X, 4 x 8 ft sheets",
     "unit": "sheet",
     "formula": "ceil(A/32)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*1.094)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "LF",
     "formula": "A*0.375",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "gal",
     "formula": "A*0.01",
     "waste": 1000
    }
   ]
  },
  {
   "key": "ceiling-58x-m",
   "type": "area",
   "csi": "09 21 16",
   "group": "Ceilings",
   "sources": [
    "ga-216",
    "irc-r702",
    "geometry"
   ],
   "assume": [
    "Sheets: 4 x 8 ft (32 SF), metric 1220 x 2440 mm (2.98 m²).",
    "Screws: 1.094 per SF (35 per sheet: sheets across framing 16 in o.c., screws 12 in o.c. on ceilings, IRC Table R702.3.5).",
    "Tape: 0.375 LF per SF; joint compound 0.01 gal per SF (a starting figure: use your product data sheet).",
    "Framing or furring is not included: add it as its own item."
   ],
   "note": "Measure the ceiling area. Set your rates: none are included.",
   "waste": 0,
   "name": "Gypsum board ceiling, 15.9 mm type X, on framing 406 mm o.c.",
   "unit": "m²",
   "twin": "ceiling-58x",
   "components": [
    {
     "name": "Gypsum board 15.9 mm type X, 1220 x 2440 mm sheets",
     "unit": "sheet",
     "formula": "ceil(A/2.9768)",
     "waste": 1000
    },
    {
     "name": "Drywall screws",
     "unit": "EA",
     "formula": "ceil(A*11.776)",
     "waste": 1000
    },
    {
     "name": "Joint tape",
     "unit": "m",
     "formula": "A*1.2303",
     "waste": 1000
    },
    {
     "name": "Joint compound, ready-mixed",
     "unit": "L",
     "formula": "A*0.4074",
     "waste": 1000
    }
   ]
  },
  {
   "key": "corner-bead",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Trim and accessories",
   "sources": [
    "ga-216",
    "geometry"
   ],
   "assume": [
    "Bead in 8 ft lengths (metric 2.44 m): one piece per started length on each run.",
    "Finishing the bead is in the walls’ compound allowance."
   ],
   "note": "Measure each outside corner as a run, floor to ceiling.",
   "waste": 0,
   "name": "Outside corner bead, metal, 8 ft lengths",
   "unit": "LF",
   "twin": "corner-bead-m",
   "components": [
    {
     "name": "Corner bead",
     "unit": "EA",
     "formula": "ceil(L/8)+N",
     "waste": 500
    }
   ]
  },
  {
   "key": "corner-bead-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Trim and accessories",
   "sources": [
    "ga-216",
    "geometry"
   ],
   "assume": [
    "Bead in 8 ft lengths (metric 2.44 m): one piece per started length on each run.",
    "Finishing the bead is in the walls’ compound allowance."
   ],
   "note": "Measure each outside corner as a run, floor to ceiling.",
   "waste": 0,
   "name": "Outside corner bead, metal, 2.44 m lengths",
   "unit": "m",
   "twin": "corner-bead",
   "components": [
    {
     "name": "Corner bead",
     "unit": "EA",
     "formula": "ceil(L/2.44)+N",
     "waste": 500
    }
   ]
  },
  {
   "key": "jbead",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Trim and accessories",
   "sources": [
    "ga-216",
    "geometry"
   ],
   "assume": [
    "Trim in 10 ft lengths (metric 3.05 m)."
   ],
   "note": "Measure where board ends against another material.",
   "waste": 0,
   "name": "J-bead or L-bead trim, 10 ft lengths",
   "unit": "LF",
   "twin": "jbead-m",
   "components": [
    {
     "name": "J-bead / L-bead",
     "unit": "EA",
     "formula": "ceil(L/10)+N",
     "waste": 500
    }
   ]
  },
  {
   "key": "jbead-m",
   "type": "linear",
   "csi": "09 21 16",
   "group": "Trim and accessories",
   "sources": [
    "ga-216",
    "geometry"
   ],
   "assume": [
    "Trim in 10 ft lengths (metric 3.05 m)."
   ],
   "note": "Measure where board ends against another material.",
   "waste": 0,
   "name": "J-bead or L-bead trim, 3.05 m lengths",
   "unit": "m",
   "twin": "jbead",
   "components": [
    {
     "name": "J-bead / L-bead",
     "unit": "EA",
     "formula": "ceil(L/3.05)+N",
     "waste": 500
    }
   ]
  },
  {
   "key": "ext-wall-2x6-8",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Wood framing",
   "sources": [
    "irc-r602",
    "irc-r703",
    "geometry"
   ],
   "assume": [
    "Studs 2x6 at 16 in o.c.: ceil(0.75 x length) + one per run; corners, intersections and openings extra (rough openings).",
    "Plates: one bottom (treated where on concrete) and a double top plate (IRC R602.3.2).",
    "Sheathing 4 x 8 ft (32 SF) panels on one side; water-resistive barrier on the wall area (IRC R703.2), 10% for laps."
   ],
   "note": "Measure the exterior wall run; the item height is the plate height. Set your rates: none are included.",
   "waste": 0,
   "name": "Exterior wall, wood studs 2x6 at 16 in o.c., 7/16 in sheathing, 8 ft",
   "unit": "LF",
   "twin": "ext-wall-2x6-8-m",
   "components": [
    {
     "name": "Bottom plate 2x6, treated",
     "unit": "LF",
     "formula": "L",
     "waste": 1000
    },
    {
     "name": "Top plates 2x6, double",
     "unit": "LF",
     "formula": "L*2",
     "waste": 1000
    },
    {
     "name": "Studs 2x6, wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 1000
    },
    {
     "name": "Wall sheathing 7/16 in, 4 x 8 ft",
     "unit": "sheet",
     "formula": "ceil(A/32)",
     "waste": 1000
    },
    {
     "name": "Water-resistive barrier",
     "unit": "SF",
     "formula": "A",
     "waste": 1000
    }
   ],
   "heightFt": 8
  },
  {
   "key": "ext-wall-2x6-8-m",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Wood framing",
   "sources": [
    "irc-r602",
    "irc-r703",
    "geometry"
   ],
   "assume": [
    "Studs 2x6 at 16 in o.c.: ceil(0.75 x length) + one per run; corners, intersections and openings extra (rough openings).",
    "Plates: one bottom (treated where on concrete) and a double top plate (IRC R602.3.2).",
    "Sheathing 4 x 8 ft (32 SF) panels on one side; water-resistive barrier on the wall area (IRC R703.2), 10% for laps."
   ],
   "note": "Measure the exterior wall run; the item height is the plate height. Set your rates: none are included.",
   "waste": 0,
   "name": "Exterior wall, wood studs 38 x 140 mm at 406 mm o.c., 11 mm sheathing, 2.44 m",
   "unit": "m",
   "twin": "ext-wall-2x6-8",
   "components": [
    {
     "name": "Bottom plate 38 x 140 mm, treated",
     "unit": "m",
     "formula": "L",
     "waste": 1000
    },
    {
     "name": "Top plates 38 x 140 mm, double",
     "unit": "m",
     "formula": "L*2",
     "waste": 1000
    },
    {
     "name": "Studs 38 x 140 mm, wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 1000
    },
    {
     "name": "Wall sheathing 11 mm, 1220 x 2440 mm",
     "unit": "sheet",
     "formula": "ceil(A/2.9768)",
     "waste": 1000
    },
    {
     "name": "Water-resistive barrier",
     "unit": "m²",
     "formula": "A",
     "waste": 1000
    }
   ],
   "heightFt": 8.00524934383202
  },
  {
   "key": "ext-wall-2x6-9",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Wood framing",
   "sources": [
    "irc-r602",
    "irc-r703",
    "geometry"
   ],
   "assume": [
    "Studs 2x6 at 16 in o.c.: ceil(0.75 x length) + one per run; corners, intersections and openings extra (rough openings).",
    "Plates: one bottom (treated where on concrete) and a double top plate (IRC R602.3.2).",
    "Sheathing 4 x 8 ft (32 SF) panels on one side; water-resistive barrier on the wall area (IRC R703.2), 10% for laps."
   ],
   "note": "Measure the exterior wall run; the item height is the plate height. Set your rates: none are included.",
   "waste": 0,
   "name": "Exterior wall, wood studs 2x6 at 16 in o.c., 7/16 in sheathing, 9 ft",
   "unit": "LF",
   "twin": "ext-wall-2x6-9-m",
   "components": [
    {
     "name": "Bottom plate 2x6, treated",
     "unit": "LF",
     "formula": "L",
     "waste": 1000
    },
    {
     "name": "Top plates 2x6, double",
     "unit": "LF",
     "formula": "L*2",
     "waste": 1000
    },
    {
     "name": "Studs 2x6, wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 1000
    },
    {
     "name": "Wall sheathing 7/16 in, 4 x 8 ft",
     "unit": "sheet",
     "formula": "ceil(A/32)",
     "waste": 1000
    },
    {
     "name": "Water-resistive barrier",
     "unit": "SF",
     "formula": "A",
     "waste": 1000
    }
   ],
   "heightFt": 9
  },
  {
   "key": "ext-wall-2x6-9-m",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Wood framing",
   "sources": [
    "irc-r602",
    "irc-r703",
    "geometry"
   ],
   "assume": [
    "Studs 2x6 at 16 in o.c.: ceil(0.75 x length) + one per run; corners, intersections and openings extra (rough openings).",
    "Plates: one bottom (treated where on concrete) and a double top plate (IRC R602.3.2).",
    "Sheathing 4 x 8 ft (32 SF) panels on one side; water-resistive barrier on the wall area (IRC R703.2), 10% for laps."
   ],
   "note": "Measure the exterior wall run; the item height is the plate height. Set your rates: none are included.",
   "waste": 0,
   "name": "Exterior wall, wood studs 38 x 140 mm at 406 mm o.c., 11 mm sheathing, 2.74 m",
   "unit": "m",
   "twin": "ext-wall-2x6-9",
   "components": [
    {
     "name": "Bottom plate 38 x 140 mm, treated",
     "unit": "m",
     "formula": "L",
     "waste": 1000
    },
    {
     "name": "Top plates 38 x 140 mm, double",
     "unit": "m",
     "formula": "L*2",
     "waste": 1000
    },
    {
     "name": "Studs 38 x 140 mm, wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 1000
    },
    {
     "name": "Wall sheathing 11 mm, 1220 x 2440 mm",
     "unit": "sheet",
     "formula": "ceil(A/2.9768)",
     "waste": 1000
    },
    {
     "name": "Water-resistive barrier",
     "unit": "m²",
     "formula": "A",
     "waste": 1000
    }
   ],
   "heightFt": 8.989501312335959
  },
  {
   "key": "ext-wall-2x6-10",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Wood framing",
   "sources": [
    "irc-r602",
    "irc-r703",
    "geometry"
   ],
   "assume": [
    "Studs 2x6 at 16 in o.c.: ceil(0.75 x length) + one per run; corners, intersections and openings extra (rough openings).",
    "Plates: one bottom (treated where on concrete) and a double top plate (IRC R602.3.2).",
    "Sheathing 4 x 8 ft (32 SF) panels on one side; water-resistive barrier on the wall area (IRC R703.2), 10% for laps."
   ],
   "note": "Measure the exterior wall run; the item height is the plate height. Set your rates: none are included.",
   "waste": 0,
   "name": "Exterior wall, wood studs 2x6 at 16 in o.c., 7/16 in sheathing, 10 ft",
   "unit": "LF",
   "twin": "ext-wall-2x6-10-m",
   "components": [
    {
     "name": "Bottom plate 2x6, treated",
     "unit": "LF",
     "formula": "L",
     "waste": 1000
    },
    {
     "name": "Top plates 2x6, double",
     "unit": "LF",
     "formula": "L*2",
     "waste": 1000
    },
    {
     "name": "Studs 2x6, wall height",
     "unit": "EA",
     "formula": "ceil(L*0.75)+N",
     "waste": 1000
    },
    {
     "name": "Wall sheathing 7/16 in, 4 x 8 ft",
     "unit": "sheet",
     "formula": "ceil(A/32)",
     "waste": 1000
    },
    {
     "name": "Water-resistive barrier",
     "unit": "SF",
     "formula": "A",
     "waste": 1000
    }
   ],
   "heightFt": 10
  },
  {
   "key": "ext-wall-2x6-10-m",
   "type": "linear",
   "csi": "06 11 00",
   "group": "Wood framing",
   "sources": [
    "irc-r602",
    "irc-r703",
    "geometry"
   ],
   "assume": [
    "Studs 2x6 at 16 in o.c.: ceil(0.75 x length) + one per run; corners, intersections and openings extra (rough openings).",
    "Plates: one bottom (treated where on concrete) and a double top plate (IRC R602.3.2).",
    "Sheathing 4 x 8 ft (32 SF) panels on one side; water-resistive barrier on the wall area (IRC R703.2), 10% for laps."
   ],
   "note": "Measure the exterior wall run; the item height is the plate height. Set your rates: none are included.",
   "waste": 0,
   "name": "Exterior wall, wood studs 38 x 140 mm at 406 mm o.c., 11 mm sheathing, 3.05 m",
   "unit": "m",
   "twin": "ext-wall-2x6-10",
   "components": [
    {
     "name": "Bottom plate 38 x 140 mm, treated",
     "unit": "m",
     "formula": "L",
     "waste": 1000
    },
    {
     "name": "Top plates 38 x 140 mm, double",
     "unit": "m",
     "formula": "L*2",
     "waste": 1000
    },
    {
     "name": "Studs 38 x 140 mm, wall height",
     "unit": "EA",
     "formula": "ceil(L/0.4064)+N",
     "waste": 1000
    },
    {
     "name": "Wall sheathing 11 mm, 1220 x 2440 mm",
     "unit": "sheet",
     "formula": "ceil(A/2.9768)",
     "waste": 1000
    },
    {
     "name": "Water-resistive barrier",
     "unit": "m²",
     "formula": "A",
     "waste": 1000
    }
   ],
   "heightFt": 10.006561679790025
  },
  {
   "key": "rough-opening",
   "type": "count",
   "csi": "06 11 00",
   "group": "Wood framing",
   "sources": [
    "irc-r602"
   ],
   "assume": [
    "Per opening up to 4 ft wide in a stud wall: 2 king studs, 2 jack studs, a two-ply header (size it from IRC Table R602.7(1) or the drawings), 2 cripples and a sill for windows."
   ],
   "note": "Count each door or window opening.",
   "waste": 0,
   "name": "Rough opening framing, opening up to 4 ft (1.2 m)",
   "unit": "EA",
   "components": [
    {
     "name": "King studs",
     "unit": "EA",
     "formula": "N*2",
     "waste": 0
    },
    {
     "name": "Jack studs",
     "unit": "EA",
     "formula": "N*2",
     "waste": 0
    },
    {
     "name": "Header plies, opening width + 3 in",
     "unit": "EA",
     "formula": "N*2",
     "waste": 0
    },
    {
     "name": "Cripple studs",
     "unit": "EA",
     "formula": "N*2",
     "waste": 0
    }
   ]
  }
 ]
}