The Ontario Building Code | Steel Piles
4.2.3.8. Steel Piles
(1) Where steel piles are used in deep foundations and act as permanent load-carrying members, the steel shall conform with one of the following standards:
(a) ASTM A252, "Welded and Seamless Steel pipe Piles",
(b) ASTM A283 / A283M, "Low and Intermediate Tensile Strength Carbon Steel Plates",
(c) ASTM A1008 / A1008M , "Steel, Sheet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy, and High-Strength Low-Alloy with Improved Formability, Solution Hardened, and Bake Hardenable",
(d) ASTM A1011 / A1011M, "Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy, High-Strength Low-Alloy with Improved Formability, and Ultra-High Strength", or
(e) CSA G40.21, "General Requirements for Rolled or Welded Structural Quality Steel".
In Plain Language
Steel piles used as permanent load-carrying deep foundation elements must conform to one of several listed ASTM steel pipe or steel product standards, ensuring consistent material quality for this structurally critical application.
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.