PART 9 — HOUSING AND SMALL BUILDINGSUpdated for the 2024 Ontario Building Code
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9.20.9.5.Ties for Masonry Veneer
(1) Masonry veneer 70 mm or more in thickness and resting on a bearing support shall be tied to masonry backing or to
wood framing members with straps that are
(a) corrosion-resistant,
(b) not less than 0.76 mm thick,
(c) not less than 22 mm wide,
(d) shaped to provide a key with the mortar,
(e) pre-bent during manufacture to a right angle within 6 mm of the fastener hole,
(f) fastened with
(i) corrosion-resistant wood screws conforming to Sentence 9.23.3.1.(3) that have a minimum diameter of
4.16 mm (No. 8) and a wood penetration of not less than 38 mm, or
(ii) corrosion-resistant common spiral nails conforming to Sentence 9.23.3.1.(1) that are not less than 76 mm long
and have a wood penetration of not less than 63 mm, and
(g) spaced in accordance with Table 9.20.9.5.
Table 9.20.9.5.
Veneer Tie Spacing
Forming Part of Sentence 9.20.9.5.(1)
Maximum Vertical Spacing, mm Maximum Horizontal Spacing, mm
400 800
500 600
600 400
(2) Where hot-dipped, zinc-coated straps are used to meet the requirements of Sentence (1), they shall be pre-bent and
pre-drilled or pre-punched prior to hot-dip, zinc-coated galvanizing.
(3) Masonry veneer individually supported by masonry or wood-frame backing shall be secured to the backing in
conformance with Subsection 4.3.2.
(4) The straps described in Sentence (1) may be installed against one of the sheathings listed in Table 9.23.17.2.-A
provided that
(a) the tie is in contact with the exterior surface of the sheathing, and
(b) the sheathing beneath the tie is not compressed.
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
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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.