Dimensions.
Municipal Code of Chicago § 14X-5-505.12.4
in effect14X-5-505.12.4 Dimensions.
Fire escape stairways must be at least 24 inches (610 mm) wide with risers not more than, and treads not less than, 8 inches (203 mm). Guards not less than 36 inches (914 mm) in height must be provided at the open sides of fire escape stairways and landings.
(Amend Coun. J. 10-7-20, p. 21791, Art. V, § 11)
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2676019Fetched: 10/24/2026