In Plain Language

Like the hardboard edge-support clause, this one requires all edges of particleboard, OSB, or waferboard wall finish to be backed by furring, blocking, or framing.

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.