The Ontario Building Code | Masonry Support
9.20.5.1. masonry Support
(1) All masonry shall be supported on masonry, concrete or steel, except that masonry veneer walls are permitted to be supported on foundationsof wood frame constructed in conformance with Sentence 9.15.2.4.(1).
(2) Every masonry wall shall be at least as thick as the wall it supports, except as otherwise permitted in Article 9.20.12.2.