Code Library › Volume 1 › Section 9.10 — Fire Protection
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.10.8.9.Crawl Spaces

(1) Where a crawl space exceeds 1.8 m in height or is used for any occupancy or as a plenum in combustible construction or for the passage of flue pipes, it shall be considered as a basement in applying the requirements in Article 9.10.8.1.
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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.