Supplement - Structural Use Panels - American Wood Council

14 DESIGN ADJUSTMENT FACTORSTable 4.2 Grade and Construction Factors (a) , C GStrength Axis Grade M EI V s V v G v t T P EA3-Ply PlywoodPrimary Structural I 1.0 1.1 1.4 1.3 1.3 1.0 1.0 1.0Other (b) 1.0 1.1 1.0 1.0 1.0 1.0 1.0 1.0Secondary Structural I 1.3 1.5 5.2 1.3 1.3 1.0 1.0 1.0Other (b) 1.0 1.0 2.8 1.0 1.0 1.0 1.0 1.04-Ply Plywood (c)Primary Structural I 1.1 1.1 1.4 1.7 1.7 1.0 1.5 1.0Other (b) 1.1 1.1 1.0 1.3 1.3 1.0 1.5 1.0Secondary Structural I 1.7 3.3 7.9 1.7 1.7 1.0 1.5 1.0Other (b) 1.2 2.2 3.9 1.3 1.3 1.0 1.5 1.05-Ply Plywood (d)Primary Structural I 1.2 1.1 1.6 2.0 1.7 1.3 1.5 1.0Other (b) 1.2 1.1 1.1 1.5 1.5 1.3 1.5 1.0Secondary Structural I 2.8 5.2 1.4 2.0 1.7 1.3 1.5 1.0Other (b) 1.8 3.1 1.0 1.5 1.5 1.3 1.5 1.0OSBPrimary Structural I 1.2 1.0 1.0 2.9 3.1 1.0 1.0 1.0Other (b) 1.2 1.0 1.0 2.9 3.1 1.0 1.0 1.0Secondary Structural I 2.8 5.2 1.0 2.9 3.1 1.3 1.0 1.0Other (b) 1.8 3.1 1.0 2.9 3.1 1.3 1.0 1.0COM-PLYPrimary Structural I 1.2 1.1 1.0 1.7 1.7 1.0 1.0 1.0Other (b) 1.2 1.1 1.0 1.3 1.3 1.0 1.0 1.0Secondary Structural I 1.7 3.3 1.0 1.7 1.7 1.0 1.0 1.0Other (b) 1.2 2.2 1.0 1.3 1.3 1.0 1.0 1.0(a)M = Moment resistance, EI = Flexural stiffness, V s = Planar (Rolling) shear resistance, V v = Through-thickness shear resistance, G v t = Shear rigidity, T = Tensionresistance, P = Compression resistance, and EA = Axial stiffness.(b)Sheathing and Single Floor.(c)Factors for 4-ply also apply to plywood with 5 plys/3 layers.(d)Factors apply to plywood with 5 or more layers.APA/EWS