Code Library › Volume 1 › Section 9.8 — Stairs, Ramps, Handrails and Guards
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.8.4.2.Dimensions for Rectangular Treads (See Note A-9.8.4.)

(1) The run for rectangular treads shall conform with Table 9.8.4.1. (2) The depth of a rectangular tread shall be not less than its run and not more than its run plus 25 mm.

This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.

← Previous9.8.4.1. Dimensions for Risers (See Note A-9.8.4.)Next →9.8.4.3. Dimensions of Tapered Treads (See Note A-9.8.4.)

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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.