Notice: This site currently shows the 2012/2017 edition of the Ontario Building Code. The current legally effective code is the 2024 edition (O.Reg. 163/24), in effect since January 1, 2025. Confirm current requirements at ontario.ca.
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The Ontario Building Code | Wood Frame Foundations

9.15.2.4. wood Frame foundations

(1) foundations of wood frame construction shall conform to,

(a) CAN/CSA-S406, "Construction of Preserved wood foundations", or

(b) Part 4.

9.15.3. footings

In Plain Language

Wood frame foundations, an alternative foundation system built from treated wood rather than concrete or masonry, must meet the requirements set out in this article.

This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.