Plywood (STRUCTURAL 1 RATED SHEATHING)

Wall Grade Specifications

 

 Durability: US panels are available in two classifications: Exterior – equivalent to (BS) EN 314 Bond Class 3 or Exposure 1 (always includes D veneer) – Bond Class 2
Veneer: Mix of veneer grades used
Span rating/support spacing and designated loading: Maximum support spacing is 406mm (40/20 on panel) for allowable shear of 1370 kg/m2 (280 lbs/sq.ft) fixed with 63mm (2-1/2″) nails. If fixed with 76mm (3″) nails allowable shear is 1660 kg/m2 (340 lbs/sq.ft). Nail diameter 3.7mm (0.148″) with minimum penetration 38mm (1-1/2″)
Thickness: 13.9mm (9/16)
Sanded/unsanded: Unsanded only
General Info: Unsanded grade for use where shear and cross-panel strength properties are most important

 

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