Featuring Plywood in Buildings - Engineered Wood Products ...

Bracing Resistance of Plywood Wall LiningStructural plywood wall lining of a minimum 6mm thick F11 (including panels grooved at 100mmcentres), fixed to timber and stud walls in accordance with Table 7 can provide bracing resistanceagainst wind and earthquakes. The bullet head nails may be punched just below the plywoodsurface.Table 7: Limit State Bracing Resistance of Structural Plywood Wall Lining (6mm F11 minimum)Fixing DetailsNailed at 100mm centres around all edges and butt joints and at200mm on the intermediate studsGlued along all edges and intermediate supports with a continuous6mm bead of elastomeric adhesive and nailed at 200mm centresBracing Resistance2.1kN/m5.3kN/mNotes:1. Nails a minimum of 2.5mm diameter x 40mm bullet head.2. Studs spaced at a maximum of 600mm centres.3. Structural elastomeric adhesive that meets American Plywood Association Standard AFG-01.4. Bracing Resistance applies to panels a minimum of 900mm width and a maximum wall heightof 2700mm.5. Fixing of the bottom plate to the sub-floor can be nominal nailing for the 2.1 kN/m system butfor the 5.3kN/m system the fixing must be strapped or bolted at a minimum of 1200mmcentres as detailed in the EWPAA “Structural Plywood Wall Bracing Manual” which is availablefrom the EWPAA Web Site.FinishingHigh quality paints, stains, or clearfinishes are recommended for plywoodlinings. Tinted clear finishes e.g. liminggrey, allow decorators to create amodern coloured key timber décor.The use of high gloss finishes andpaints tend to highlight naturallyoccurring and manufacturingcharacteristics of plywood such aschanges in grain and beat marks fromthe sanding. Matt finishes and paintsare recommended to provide a naturaltimber finish.19