Code Library › Volume 1 › Section 3.3 — Safety Within Floor Areas (See Note A-3.3.)
PART 3 — FIRE PROTECTION, OCCUPANT SAFETY AND ACCESSIBILITYUpdated for the 2024 Ontario Building Code

3.3.5.10.Guards

(1) Except where they serve storage garages, guards in industrial occupancies are permitted to consist of (a) a top rail, and (b) one or more intermediate rails spaced such that the openings through the guard are of a size that prevents the passage of a spherical object whose diameter is 535 mm.
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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.