1208.2 Minimum ceiling heights.
BC § 1208.2
Habitable rooms and spaces shall have a ceiling height of not less than 8 feet (2438.4 mm). Occupiable spaces and corridors shall have a ceiling height of not less than 7 feet 6 inches (2286 mm). Bathrooms, toilet rooms, kitchens in other than Group I-1 and R occupancies, kitchenettes in Group I-1 or R occupancies, storage rooms and laundry rooms shall have a ceiling height of not less than 7 feet (2133.6 mm). All measurements shall be taken from the finished floor to the finished underside of the ceiling or ceiling beams. Exceptions: 1. In one- and two-family dwellings, beams or girders spaced not less than 4 feet (1220 mm) on center may project not more than 6 inches (152.4 mm) below the required ceiling height, provided that a clear height of 7 feet (2133.6 mm) is maintained.
2.Habitable rooms in basements of one- or two-family dwellings, including any projecting beams, shall have a ceiling height of not less than 7 feet (2133.6 mm).
3.Habitable rooms in basements of multiple dwellings may have as many as four beams crossing the ceiling if none of the beams exceeds 12 inches (304.8 mm) in width or extends below the ceiling more than 6 inches (152.4 mm).
4.Spaces above and below a mezzanine, other than habitable spaces, shall have a ceiling height of not less than 7 feet (2133.6 mm).
