{"format":"cadcraft-library-item","format_version":1,"uuid":"3e5bf977-447c-4257-aba8-c988285ee1f7","version":2,"name":"Brazil: ABNT standards NBR 9077 (exits), NBR 9050 (accessibility), NBR 15575 (housing performance)","kind":"regulation","category":"regulations/building","description":"Brazil has no national building code: ABNT standards apply nationally and municipal codes set room sizes and openings. Values from a 2001 NBR 9077 copy and secondary sources; current editions not confirmed. Width (1.10 m) is the emergency-exit rule and is not checked for houses. Not checked by this pack: stair width, stair headroom, glazing, share of floor area, openable area, share of floor area…","maker":"","model":"","ifc":{"class":"IfcControl","predefined":"NOTDEFINED"},"plan":{"layers":[],"entities":[]},"body":null,"params":{},"regulation":{"format":"cadcraft-regulation-pack","version":1,"id":"br-abnt","name":"Brazil: ABNT standards NBR 9077 (exits), NBR 9050 (accessibility), NBR 15575 (housing performance)","jurisdiction":{"country":"BR","level":"country","region":"","name":"Brazil"},"base":null,"edition":"ABNT standards NBR 9077 (exits), NBR 90…","in_force":null,"review":{"state":"unchecked","note":"Brazil has no national building code: ABNT standards apply nationally and municipal codes set room sizes and openings. Values from a 2001 NBR 9077 copy and secondary sources; current editions not confirmed. Width (1.10 m) is the emergency-exit rule and is not checked for houses. Not checked by this pack: stair width, stair headroom, glazing, share of floor area, openable area, share of floor area…"},"authority":"model-code","source":{"name":"ABNT; municipal Códigos de Obras; state fire brigades, ABNT standards NBR 9077 (exits), NBR 9050 (accessibility), NBR 1…","url":"https://www.mprj.mp.br/documents/20184/74453/nbr_9077_saidas_de_emergencia_em_edificios_2001.pdf","date":"2001-12","checked":"2026-10-27"},"maker":null,"price":null,"criteria":[],"tables":[],"rules":[{"id":"stair.riser.max","applies":"stair","op":"<=","unit":"mm","clause":"NBR 9077 4.7.3.1; NBR 9050 6.8.2","label":"Riser height","note":"160-180 mm; 630 ≤ 2h + b ≤ 640 mm.","value":180},{"id":"stair.tread.min","applies":"stair","op":">=","unit":"mm","clause":"NBR 9050 6.8.2","label":"Tread depth (going)","note":"280-320 mm on accessible routes.","value":280},{"id":"stair.rail.height","applies":"stair","op":"between","unit":"mm","clause":"NBR 9077 4.8.2.1","label":"Handrail height","note":"NBR 9050 accessible routes: double handrails at 700 and 920 mm.","min":800,"max":920},{"id":"room.ceiling.min","applies":"room","op":">=","unit":"mm","clause":"NBR 15575-1","label":"Ceiling height","note":"2.30 m allowed in halls, corridors, toilets and bathrooms. Municipal codes may require more.","value":2500}]},"source_attrs":{},"license":{"id":"CC0-1.0","holder":"CadCraft","attribution":"“Brazil: ABNT standards NBR 9077 (exits), NBR 9050 (accessibility), NBR 15575 (housing performance)” by CadCraft (https://www.mprj.mp.br/documents/20184/74453/nbr_9077_saidas_de_emergencia_em_edificios_2001.pdf), CC0 (https://creativecommons.org/publicdomain/zero/1.0/)","url":"https://creativecommons.org/publicdomain/zero/1.0/"},"provenance":{"library":"librarycraft","item":"3e5bf977-447c-4257-aba8-c988285ee1f7","version":2,"sha256":"de89cdb904f76c97a0912b55142b2e58cb2da3e2e72d6e01ee74935da1a57d63","source_file":"br-abnt.json","source_sha256":"5886c65b864f17b953a5593bc8b6ec5009fe59ca1e24fd7e8331abc6d9cfca07","published_at":"2026-10-27T02:07:28Z"}}