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Nds Timber Design Values: HEM-FIR (NORTH)
Construction to Select Structural|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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HEM-FIR (NORTH) | Construction | 1,500,000 | 550,000 | 1,150 | 405 | 1,750 | 650 | 145 | 0.46 | NLGA | 2" - 4" wide | NDS-2018 Supplement | 4A |
| HEM-FIR (NORTH) | No. 1 & Btr | 1,700,000 | 620,000 | 1,200 | 405 | 1,550 | 725 | 145 | 0.46 | NLGA | 2" & wider | NDS-2018 Supplement | 4A |
| HEM-FIR (NORTH) | No. 1/ No. 2 | 1,600,000 | 580,000 | 1,000 | 405 | 1,450 | 575 | 145 | 0.46 | NLGA | 2" & wider | NDS-2018 Supplement | 4A |
| HEM-FIR (NORTH) | No. 3 | 1,400,000 | 510,000 | 575 | 405 | 850 | 325 | 145 | 0.46 | NLGA | 2" & wider | NDS-2018 Supplement | 4A |
| HEM-FIR (NORTH) | No.1|Beams and Stringers|4D | 1,300,000 | 470,000 | 1,000 | 405 | 750 | 500 | 135 | 0.46 | NLGA | Beams and Stringers | NDS-2018 Supplement | 4D |
| HEM-FIR (NORTH) | No.1|Posts and Timbers|4D | 1,300,000 | 470,000 | 925 | 405 | 850 | 625 | 135 | 0.46 | NLGA | Posts and Timbers | NDS-2018 Supplement | 4D |
| HEM-FIR (NORTH) | No.2|Beams and Stringers|4D | 1,100,000 | 400,000 | 675 | 405 | 475 | 325 | 135 | 0.46 | NLGA | Beams and Stringers | NDS-2018 Supplement | 4D |
| HEM-FIR (NORTH) | No.2|Posts and Timbers|4D | 1,100,000 | 400,000 | 550 | 405 | 575 | 375 | 135 | 0.46 | NLGA | Posts and Timbers | NDS-2018 Supplement | 4D |
| HEM-FIR (NORTH) | Select Structural | 1,700,000 | 620,000 | 1,300 | 405 | 1,700 | 775 | 145 | 0.46 | NLGA | 2" & wider | NDS-2018 Supplement | 4A |
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