Nds Timber Design Values: COAST SITKA SPRUCE
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) | table id |
|---|---|---|---|---|---|---|---|---|---|
| COAST SITKA SPRUCE | Construction | 1,400,000 | 510,000 | 1,050 | 455 | 1,300 | 650 | 125 | 4A |
| COAST SITKA SPRUCE | No. 3 | 1,400,000 | 1,400,000 | 525 | 455 | 625 | 325 | 125 | 4A |
| COAST SITKA SPRUCE | No.1 | 1,500,000 | 1,500,000 | 875 | 455 | 725 | 575 | 115 | 4D |
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