The Ontario Building Code | Anchorage of Floor or Roof Assemblies
220.127.116.11. Anchorage of floor or Roof Assemblies
(1) Where required to receive lateral support, masonry walls shall be anchored to each floor or roof assembly at maximum intervals of 2 m, except that anchorage of floor joists not more than 1 m above grade may be omitted.
(2) Anchors required in Sentence (1) shall be corrosion-resistant and be not less than the equivalent of 40 mm by 4.76 mm thick steel straps.