In Plain Language

Plain, reinforced, or prestressed concrete used in foundations, or to retain soil or rock, must conform to the concrete design requirements in Subsection 4.3.3, the Code's general concrete standard applied to foundation work.

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.