Q104 Emergency Sleeping Cabins — 2025 California Building Code

Emergency sleeping cabins shall have an interior floor area of not less than 70 square feet (6.5 m [2] ) for one occupant. Where more than one person occupies the cabin, the required floor area shall be increased at the rate of 50 square feet (4.65 m [2] ) for each occupant in excess of one. The interior floor area shall not exceed 400 square feet (37 m [2] ), excluding lofts.

Emergency sleeping cabins shall be designed to resist intrusion of wind, rain, and to support the following live loads: 1. Floor live loads not less than 40 pounds per square foot (1.92 kPa) of floor area. 2. Horizontal live loads not less than 15 pounds per square foot (718 Pa) of vertical wall and roof area. 3. Roof live loads not less than 20 pounds per square foot (958 Pa) of horizontal roof area. 4. In areas where snow loads are greater than 20 pounds per square foot (958 Pa), the roof shall be designed and constructed to resist these additional loads.

Habitable space and hallways in emergency sleeping cabins shall have a ceiling height of not less than 80 inches (2032 mm). Bathrooms, toilet rooms and kitchens, if provided, shall have a ceiling height of not less than 76 inches (1930 mm). Obstructions shall not extend below these minimum ceiling heights including beams, girders, ducts, lighting and other obstructions.

Exception: Ceiling heights in lofts constructed in accordance with Section Q108 are permitted to be less than 80 inches (2032 mm).

Emergency sleeping cabins shall be provided with at least two forms of egress placed remotely from each other. One form of egress may be an egress window complying with Section Q104.4.1. When a loft is provided, one form of egress shall be an egress window complying with Section Q104.4.1, provided in the loft space.

Q104.4.1 Egress window. The bottom of the clear opening of the egress window shall not be more than 44 inches (1118 mm) above the floor. The egress window shall have a minimum net clear opening height of 24 inches (610 mm), and a minimum net clear opening width of 20 inches (508 mm). The egress window shall have a minimum net clear opening area of 5 square feet (0.465 m [2] ).

If an emergency sleeping cabin contains plumbing or gas service, it shall comply with all applicable requirements of the California Plumbing Code and the California Mechanical Code.

Emergency sleeping cabins shall be provided with all of the following installed in compliance with the California Elec- trical Code:

1. Continuous source of electricity. Exception: The source of electricity may be an emergency generator or renewable source of power such as solar or wind

power.

2. At least one interior lighting fixture. 3. Electrical heating equipment listed for residential use and a dedicated receptacle outlet for the electrical heating equipment. Exception: Electrical heating equipment and a dedicated receptacle outlet for the electrical heating equipment are not required if a nonelectrical source of heating is provided. 4. At least one GFCI-protected receptacle outlet for use by the occupant(s).

Emergency sleeping cabins shall be provided with means of ventilation (natural and/or mechanical) allowing for adequate air replacement, as determined by the enforcing agency.

Emergency sleeping cabins shall be provided with at least one smoke alarm installed in accordance with the California Residential Code, Section R314.

If an emergency sleeping cabin contains a fuel-burning appliance(s) or a fireplace(s), a carbon monoxide alarm shall be installed in accordance with the California Residential Code, Section R315.