§ 3280.104. Ceiling heights.
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/us/cfr/t24/s§ 3280.104·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
(a)Every habitable room and bathroom shall have a minimum ceiling height of not less than 7 feet, 0 inches for a minimum of 50 percent of the room's floor area. The remaining area may have a ceiling with a minimum height of 5 feet, 0 inches. Minimum height under dropped ducts, beams, etc. shall be 6 feet, 4 inches.
(b)Hallways and foyers shall have a minimum ceiling height of 6 feet, 6 inches.