Building regulations: Building regulations
Germany: Musterbauordnung (MBO) and DIN 18065:2020-08 Gebäudetreppen (model)
Front faces down the page. Dashed lines are hidden or above; dotted lines are door swings and clearances.
- Category
- Building regulations: Building regulations
- Kind
- Regulation pack
- Languages
- None provided. The words are as the provider wrote them.
- Author
- CadCraft
- Version
- 2, published Oct 27, 2026 Published
The national model: each Land's building code (LBO) broadly follows it. Stair values are DIN 18065 (from secondary sources; the standard is paywalled) for buildings with up to two dwellings and inside dwellings, and are not building law for houses in building classes 1 and 2; the ceiling rule does not apply to residential building classes 1 and 2 either. Not checked by this pack: stair headroom,…
License
CC0CC0 1.0 (public domain dedication). Anyone may use, change and share it for any purpose, with no conditions. Credit is welcome but not required.
The credit line for this version. Select it and copy it into your drawing or sheet notes.
Placing items works in the CadCraft and BimCraft apps, which are not open here yet. Download item.json to keep a copy.
Regulation pack
Not checked: these numbers have not been confirmed against the standard. The national model: each Land's building code (LBO) broadly follows it. Stair values are DIN 18065 (from secondary sources; the standard is paywalled) for buildings with up to two dwellings and inside dwellings, and are not building law for houses in building classes 1 and 2; the ceiling rule does not apply to residential building classes 1 and 2 either. Not checked by this pack: stair headroom,…
- Place
- Germany
- Pack id
de-mbo-din18065- Edition
- Musterbauordnung (MBO) and DIN 18065:20…
- Authority
- Model code
- Source date
- 2024-09-27
- Last checked
- 2026-10-27
- Source
- Bauministerkonferenz (ARGEBAU); DIN; DIBt (MVV TB), Musterbauordnung (MBO) and DIN 18065:2020-08 Gebäudetreppen (model)
| Rule | Clause | Required |
|---|---|---|
| Riser height Up to two dwellings / inside dwellings; 190 mm in other buildings. Stride rule 2s + a = 590-650 mm. | DIN 18065 Table 1 | At most 200 mm |
| Tread depth (going) Required stairs, up to two dwellings / inside dwellings; 260 mm in other buildings. | DIN 18065 Table 1 | At least 230 mm |
| Stair width Usable width, up to two dwellings / inside dwellings; 1000 mm in other buildings. | DIN 18065 Table 1 | At least 800 mm |
| Handrail height From secondary sources. | DIN 18065 6.10.1 | 800 mm to 1,150 mm |
| Ceiling height Attic rooms 2.20 m over half the floor area. Does not apply to residential buildings of building classes 1 and 2. | MBO § 47(1) | At least 2,400 mm |
| Glazing, share of floor area Window openings (structural size) at least 1/8 of the net floor area. | MBO § 47(2) | At least 12.5 % of the floor area |
A guide only: the registered professional and the local authority decide. A pack holds numbers and clause numbers, never the standard's text. The Building regulations add-on in BimCraft checks drawings against it.
Versions
All versionsMake a copy and change it
Sign in to copy this item into your own library. The copy keeps a "Based on" link and credit to this one.
Report a problem
Wrong sizes, copied work, something that isn't a library item: tell us. Copyright holders can also write through the support form. How we handle it is on the rules page.