StacksVerified U.S. regulatory reference

24 CFR §3280.104

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (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.
  2. (b)Hallways and foyers shall have a minimum ceiling height of 6 feet, 6 inches.