The Ontario Building Code | Subflooring Required
9.23.14.1. Subflooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring Required
(1) Subflooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring shall be provided beneath finish flooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring where the finish flooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring does not have adequate strength to support the design loads.
In Plain Language
Subflooring is required over floor joists, as set out in this article, providing a structural platform beneath the finished floor covering.
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.