Corridors.
Municipal Code of Chicago § 14X-5-505.16
in effect14X-5-505.16 Corridors.
The width of a corridor must be sufficient for the occupant load served and not less than 36 inches (914 mm). Corridors serving an occupant load greater than 30 and openings in these corridors must provide an effective barrier to resist the movement of smoke. Transoms, louvers, doors, and other openings must be kept closed or be self-closing.
Exceptions:
1. Corridors in occupancies other than in Group H, that are equipped throughout with an automatic sprinkler system.
2. Corridors that are in accordance with the Chicago Building Code.
(Amend Coun. J. 2-19-20, p. 14473, Art. V, § 33; Amend Coun. J. 1-26-22, p. 43756, Art. IV, § 2)
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2676043Fetched: 10/24/2026