Corbelling Masonry

(1)  All corbelling shall consist of solid masonry units.

(2)  The units referred to in Sentence (1) shall be corbelled so that the horizontal projection of any unit does not exceed 25 mm and the total projection does not exceed one-third of the total wall thickness.

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Article 9.20.12.1 Ontario Regulation 332/12 Building Code,   Information published by oncodes.ca for educational purposes only.