The Ontario Building Code | Pilasters
9.15.5.3. Pilasters
(1) Pilasters shall be provided under beams that frame into unit masonry foundation walls 140 mm or less in thickness.
(2) Pilasters required in Sentence (1) shall be not less than 90 mm by 290 mm and shall be bonded or tied into the wall.
(3) The top 200 mm of pilasters required in Sentence (1) shall be solid.
9.15.6. Parging and Finishing of foundation Walls
In Plain Language
Pilasters, thickened sections of a foundation wall that provide extra support, must meet the requirements 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.