NDS, National Design Specification for Wood Construction: Supplement |
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ADJUSTMENT FACTORS Design AITC Balsam Fir Bending design values commercial grade comprehensive description Construction 2"-4 Dense Structural 72 description of design design value adjustment DF/DF dimension lumber DOUGLAS FIR-LARCH dry service conditions duration and dry E-RATED EASTERN WHITE PINE Faces of Laminations FACTORS Design values Fbyy Flat Use Factor Fvyy Glued Laminated Timber Grading Rules Agency grain to grain HEM-FIR HF/HF Lami Mixed Southern Pine Modulus of Elasticity narrow face 1.33 NELMA NLGA NLGA Commercial No.1 Stringers No.1 Timbers Non-Dense normal load duration NORTHERN RED OAK NORTHERN WHITE CEDAR parallel to grain Parallel to Wide pounds per square Sawn Lumber Select Structural Beams Select Structural Posts shear stress factors SITKA SPRUCE Softwood SP/SP Species and commercial SPIB SPRUCE-PINE-FIR square inch psi Standard Structural Glued Laminated Table 5B Tabulated design values thick value adjustment factors values in pounds Visually Graded WCLIB WESTERN HEMLOCK Wet Service Factor wide face wider Width WWPA