Nails for Fastening Gypsum Board

(1)  Nails for fastening gypsum board to wood supports shall conform to,

    (a)   ASTM F1667, “Driven Fasteners: Nails, Spikes and Staples”, or

    (b)   CSA B111, “Wire Nails, Spikes and Staples”.

Article Ontario Regulation 332/12 Building Code,   Information published by for educational purposes only.

Nail Attachment

Gypsum board panels can be attached to wood members by nails or screws (Figure 164). Nails should be ringed, with 2.3 mm (3⁄32 in.) shanks and 5.5 mm (7⁄32 in.) diameter heads. The nails should be long enough to penetrate at least 20 mm (3⁄4 in.) into wood supports. Screws should be long enough to penetrate at least 15 mm (5⁄8 in.) into wood supports.

The fastener heads are set slightly below the surface without damaging the paper so that a
slight dimple is formed in the face of the board,which will be filled with joint compound (Figure 165). The fasteners at the recessed edge of the sheet may be driven with the heads flush since they will be covered with tape and joint compound.

Figure 164

Application of drywall finish

Figure 165

Finishing of gypsum board

Source : Canada Mortgage and Housing Corporation (CMHC)