Code Library › Volume 1 › Section 9.20 — Masonry and Insulating Concrete Form
PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code

9.20.7.3.Separation of Chases and Recesses

(1) Chases and recesses shall be not less than (a) 4 times the wall thickness apart, and (b) 600 mm away from any pilaster, cross wall, buttress or other vertical element providing required lateral support for the wall.
← Previous9.20.7.2. Minimum Wall ThicknessNext →9.20.7.4. Non-Conforming Chases or Recesses

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.