9.23.3.4.Nailing of Framing

(1) Except as provided in Sentence (2), nailing of framing shall conform to Table 9.23.3.4. (2) Where the bottom wall plate or sole plate of an exterior wall is not nailed to joists or blocking in conformance with Table 9.23.3.4., the exterior wall is permitted to be fastened to the floor framing by (a) having plywood, OSB or waferboard sheathing extend down over floor framing and fastened to the floor framing by nails or staples conforming to Article 9.23.3.5., or (b) tying the wall framing to the floor framing by 50 mm wide galvanized-metal strips (i) 50 mm wide, (ii) not less than 0.41 mm thick, (iii) spaced not more than 1.2 m apart, and (iv) fastened at each end with at least two 63 mm nails. Table 9.23.3.4. Nailing for Framing Forming Part of Sentences 9.23.3.4.(1), (2) and 9.23.14.4.(2) Minimum Length of Minimum Number or Maximum Construction Detail Nails, mm Spacing of Nails Floor joist or blocking perpendicular to sill plate or top wall plate below – toe nail 82 2 per floor joist or blocking Rim joist, trimmer joist or blocking – supporting walls with required braced wall panels 82 150 mm o.c. – to sill plate or top wall plate – toe nail Wood or metal strapping to underside of floor joists 57 2 Cross-bridging to joists 57 2 at each end Double header or trimmer joists 76 300 mm o.c. Floor joist to stud (balloon construction) 76 2 Ledger strip to wood beam 82 2 per joist Joist to joist splice (See also Table 9.23.14.8.) 76 2 at each end r1 Header joist end nailed to joists along perimeter 101 3 Tail joist to adjacent header joist 82 5 (end nailed) around openings 101 3 Each header joist to adjacent trimmer joist 82 5 (end nailed) around openings 101 3 Stud to wall plate (each end) toe nail 63 4 or end nail 82 2 Doubled studs at openings, or studs at walls or wall intersections and corners 76 750 mm o.c. Doubled top wall plates(1) 76 600 mm o.c. Bottom wall plate or sole plate to floor joists, rim joists or blocking (exterior walls)(2) 82 400 mm o.c. Bottom wall plate or sole plate – in required braced wall panels – to floor joists, rim 82 150 mm o.c. joists or blocking (exterior walls)(2) Interior walls to framing or subflooring 82 600 mm o.c. Required braced wall panels – in interior walls – to framing above and below 82 150 mm o.c. Horizontal member over openings in non-loadbearing walls – each end 82 2 Lintels to studs 82 2 at each end Ceiling joist to plate – toe nail each end 82 2 Roof rafter, roof truss or roof joist to plate – toe nail(3) 82 3 Rafter plate to each ceiling joist 101 2 Rafter to joist (with ridge supported) 76 3 Rafter to joist (with ridge unsupported) 76 See Table 9.23.14.8. Gusset plate to each rafter at peak 57 4 Rafter to ridge board – toe nail – end nail 82 3 Collar tie to rafter – each end 76 3 Collar tie lateral support to each collar tie 57 2 Jack rafter to hip or valley rafter 82 2 Roof strut to rafter 76 3 Roof strut to loadbearing wall – toe nail 82 2 38 mm × 140 mm or less plank decking to support 82 2 Plank decking wider than 38 mm × 140 mm to support 82 3 38 mm edge laid plank decking to support (toe nail) 76 1 38 mm edge laid plank to each other 76 450 mm o.c. End-joist or end-rafter to built-up wall stud(4) 76 5 or 8(5) Notes to Table 9.23.3.4.: (1) See Article 9.23.11.4. for requirements on the nailing of top plates in braced wall bands. (2) See Sentence 9.23.3.4.(2). (3) See Sentence 9.23.3.4.(3). (4) See Sentence 9.23.13.5.(3). (5) Where heavyweight construction is used in the roof of the space, at least 8 nails are required. (See Note A-9.23.13.2.(1)(a)(i))