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

9.20.2.1.Masonry Unit Standards

(1) Masonry units shall comply with (a) ASTM C73, “Standard Specification for Calcium Silicate Brick (Sand-Lime Brick),” (b) ASTM C126, “Ceramic Glazed Structural Clay Facing Tile, Facing Brick, and Solid Masonry Units,” (c) ASTM C212, “Standard Specification for Structural Clay Facing Tile,” (d) CAN/CSA-A82 “Fire masonry brick made from clay or shale,” (e) CSA A165.1, “Concrete block masonry units,” (f) CSA A165.2, “Concrete brick masonry units,” or (g) CSA A165.3, “Prefaced concrete masonry units.”
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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.