The Ontario Building Code | Corbelling for Cavity Walls
22.214.171.124. Corbelling for Cavity walls
(1) Cavity walls of greater thickness than the foundation wall on which they rest shall not be corbelled but may project 25 mm over the outer face of the wallhehandyforce.com/interior/basement-renovations/" title ="Toronto Basement renovator">foundationwall disregarding parging.
(a) the projection of each course does not exceed half the height or one-third the width of the corbelled unit, and