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Nds Timber Design Values: HEM-FIR (NORTH)
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HEM-FIR (NORTH) | Select Structural|Beams and Stringers|4D | 1,300,000 | 470,000 | 1,250 | 405 | 900 | 725 | 135 | 0.46 | NLGA | Beams and Stringers | NDS-2018 Supplement | 4D |
| HEM-FIR (NORTH) | Select Structural|Posts and Timbers|4D | 1,300,000 | 470,000 | 1,150 | 405 | 950 | 775 | 135 | 0.46 | NLGA | Posts and Timbers | NDS-2018 Supplement | 4D |
| HEM-FIR (NORTH) | Standard | 1,400,000 | 510,000 | 650 | 405 | 1,500 | 350 | 145 | 0.46 | NLGA | 2" - 4" wide | NDS-2018 Supplement | 4A |
| HEM-FIR (NORTH) | Stud | 1,400,000 | 510,000 | 775 | 405 | 925 | 450 | 145 | 0.46 | NLGA | 2" & wider | NDS-2018 Supplement | 4A |
| HEM-FIR (NORTH) | Utility | 1,300,000 | 470,000 | 300 | 405 | 975 | 175 | 145 | 0.46 | NLGA | 2" - 4" wide | NDS-2018 Supplement | 4A |
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