Code Library › Volume 1 › Section 3.4 — Exits
PART 3 — FIRE PROTECTION, OCCUPANT SAFETY AND ACCESSIBILITYUpdated for the 2024 Ontario Building Code

3.4.6.19.Floor Numbering and Identification of Stair Shafts

(1) Arabic numerals indicating the assigned floor number in both visual and tactile forms in accordance with Article 3.8.3.1. shall, be mounted permanently on the wall on the stair side and on the floor side at the latch side of doors to exit stair shafts. (2) Upper case letters indicating the designation assigned to each exit stair shaft in both visual and tactile forms in accordance with Article 3.8.3.1. shall mounted permanently on the wall on the stair side and on the floor side at the latch side of doors to exit stair shafts.
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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.