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Nds Timber Design Values: WESTERN HEMLOCK
No.1|Beams and Stringers|4D to Select Structural|Posts and Timbers|4D
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 HEMLOCK | No.1|Beams and Stringers|4D | 1,400,000 | 510,000 | 1,150 | 410 | 850 | 575 | 170 | 0.47 | WCLIB, WWPA | Beams and Stringers | NDS-2018 Supplement | 4D |
| WESTERN HEMLOCK | No.1|Posts and Timbers|4D | 1,400,000 | 510,000 | 1,050 | 410 | 950 | 700 | 170 | 0.47 | WCLIB, WWPA | Posts and Timbers | NDS-2018 Supplement | 4D |
| WESTERN HEMLOCK | No.2|Beams and Stringers|4D | 1,100,000 | 400,000 | 750 | 410 | 550 | 375 | 170 | 0.47 | WCLIB, WWPA | Beams and Stringers | NDS-2018 Supplement | 4D |
| WESTERN HEMLOCK | No.2|Posts and Timbers|4D | 1,100,000 | 400,000 | 650 | 410 | 650 | 425 | 170 | 0.47 | WCLIB, WWPA | Posts and Timbers | NDS-2018 Supplement | 4D |
| WESTERN HEMLOCK | Select Structural|Beams and Stringers|4D | 1,400,000 | 510,000 | 1,400 | 410 | 1,000 | 825 | 170 | 0.47 | WCLIB, WWPA | Beams and Stringers | NDS-2018 Supplement | 4D |
| WESTERN HEMLOCK | Select Structural|Posts and Timbers|4D | 1,400,000 | 510,000 | 1,300 | 410 | 1,100 | 875 | 170 | 0.47 | WCLIB, WWPA | Posts and Timbers | NDS-2018 Supplement | 4D |
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