The Ontario Building Code | Sleepers
9.30.1.3. Sleepers
(1) wood sleepers supporting finished flooring="http://thehandyforce.com/flooring/" title ="Handyman flooring install Toronto">flooring over a concrete base supported on the ground shall be not less than 19 mm by 38 mm and shall be treated with a wood preservative.
In Plain Language
Sleepers, wood strips laid over a concrete slab to support finish flooring, must meet the requirements set out in this article where used.
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.