9.23.6.

(1) Building frames shall be anchored to the foundation unless a structural analysis of wind and earth pressures shows anchorage is not required.

(2) Except as provided in Article 9.23.6.3., anchorage shall be provided by embedding the ends of the first floor joists in concrete, or fastening the sill plate to the foundation with not less than 12.7 mm diam anchor bolts spaced not more than 2 400 mm o.c.

(3) Anchor bolts referred to in Sentence (2) shall be fastened to the sill plate with nuts and washers and shall be embedded not less than 100 mm in the foundation and so designed that they may be tightened without withdrawing them from the foundation.

(1) Except as provided in Sentences (2) and (3), exterior columns and posts shall be anchored to resist uplift and lateral movement.

(2) Except as provided in Sentence (3), where columns or posts support balconies, decks, verandas and other exterior platforms, and the columns or posts extend not more than 600 mm above finished ground level, the supported joists or beams shall be,

(a) anchored to a foundation to resist uplift and lateral movement, or

(b) directly anchored to the ground to resist uplift.

(3) Anchorage is not required for platforms described in Sentence (2) that,

(a) are not more than 1 storey,

(b) are not more than 55 m² in area,

(c) do not support a roof, and

(d) are not attached to another structure, unless it can be demonstrated that differential movement will not adversely affect the performance of that structure.

(1) Buildings not more than 4.3 m wide and not more than 1 storey in building height are permitted to be anchored in conformance with the requirements of CAN/CSA-Z240.10.1, “Site Preparation, Foundation and Anchorage of Mobile Homes”.