The Ontario Building Code | Annular Grooved Nails
9.23.14.6. Annular Grooved Nails
(1) When resilient flooring is applied directly to an OSB, waferboard, particleboard or plywood subfloor, the subfloor shall be fastened to the supports with annular grooved nails.
In Plain Language
Annular grooved nails, a fastener type with better holding power, are required for subfloor attachment under the conditions 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.