Code Library › Volume 1 › Section 9.20 — Masonry and Insulating Concrete Form
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.20.8.2.Cavity Walls Supporting Framing Members

(1) Floor joists supported on cavity walls shall be supported on solid masonry units not less than 57 mm high. (2) Floor joists described in Sentence (1) shall not project into the cavity. (3) Roof and ceiling framing members bearing on cavity walls shall be supported on (a) solid masonry units not less than 57 mm high that bridge the full thickness of the wall, or (b) a wood plate not less than 38 mm thick, bearing not less than 50 mm on each wythe.
← Previous9.20.8.1. Capping of Hollow Masonry WallsNext →9.20.8.3. Bearing of Beams and Joists

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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.