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Nds Timber Design Values: WESTERN WOODS
Select Structural|Beams and Stringers|4D to Utility
NDS (National Design Specification) reference design values for visually graded dimension lumber — bending, tension, shear, compression, and modulus of elasticity
| species | grade | E psi (psi) | Emin psi (psi) | Fb psi (psi) | Fc perp psi (psi) | Fc psi (psi) | Ft psi (psi) | Fv psi (psi) | G | grading rules agency | size classification | standard | table id |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WESTERN WOODS | Select Structural|Beams and Stringers|4D | 1,100,000 | 400,000 | 1,050 | 345 | 750 | 625 | 125 | 0.36 | WCLIB, WWPA | Beams and Stringers | NDS-2018 Supplement | 4D |
| WESTERN WOODS | Select Structural|Posts and Timbers|4D | 1,100,000 | 400,000 | 1,000 | 345 | 800 | 675 | 125 | 0.36 | WCLIB, WWPA | Posts and Timbers | NDS-2018 Supplement | 4D |
| WESTERN WOODS | Standard | 900,000 | 330,000 | 425 | 335 | 925 | 200 | 135 | 0.36 | WCLIB, WWPA | 2" - 4" wide | NDS-2018 Supplement | 4A |
| WESTERN WOODS | Stud | 900,000 | 330,000 | 525 | 335 | 575 | 225 | 135 | 0.36 | WCLIB, WWPA | 2" & wider | NDS-2018 Supplement | 4A |
| WESTERN WOODS | Utility | 800,000 | 290,000 | 200 | 335 | 600 | 100 | 135 | 0.36 | WCLIB, WWPA | 2" - 4" wide | NDS-2018 Supplement | 4A |
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