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Nds Timber Design Values: BEECH-BIRCH-HICKORY
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| BEECH-BIRCH-HICKORY | Construction | 1,400,000 | 510,000 | 1,150 | 715 | 1,000 | 675 | 195 | 0.71 | NELMA | 2" - 4" wide | NDS-2018 Supplement | 4A |
| BEECH-BIRCH-HICKORY | No. 1 | 1,600,000 | 580,000 | 1,050 | 715 | 950 | 600 | 195 | 0.71 | NELMA | 2" & wider | NDS-2018 Supplement | 4A |
| BEECH-BIRCH-HICKORY | No. 2 | 1,500,000 | 550,000 | 1,000 | 715 | 750 | 600 | 195 | 0.71 | NELMA | 2" & wider | NDS-2018 Supplement | 4A |
| BEECH-BIRCH-HICKORY | No. 3 | 1,300,000 | 470,000 | 575 | 715 | 425 | 350 | 195 | 0.71 | NELMA | 2" & wider | NDS-2018 Supplement | 4A |
| BEECH-BIRCH-HICKORY | No.1|Beams and Stringers|4D | 1,500,000 | 550,000 | 1,400 | 715 | 825 | 700 | 180 | 0.71 | NELMA | Beams and Stringers | NDS-2018 Supplement | 4D |
| BEECH-BIRCH-HICKORY | No.1|Posts and Timbers|4D | 1,500,000 | 550,000 | 1,250 | 715 | 900 | 850 | 180 | 0.71 | NELMA | Posts and Timbers | NDS-2018 Supplement | 4D |
| BEECH-BIRCH-HICKORY | No.2|Beams and Stringers|4D | 1,200,000 | 440,000 | 900 | 715 | 525 | 450 | 180 | 0.71 | NELMA | Beams and Stringers | NDS-2018 Supplement | 4D |
| BEECH-BIRCH-HICKORY | No.2|Posts and Timbers|4D | 1,200,000 | 440,000 | 725 | 715 | 425 | 475 | 180 | 0.71 | NELMA | Posts and Timbers | NDS-2018 Supplement | 4D |
| BEECH-BIRCH-HICKORY | Select Structural | 1,700,000 | 620,000 | 1,450 | 715 | 1,200 | 850 | 195 | 0.71 | NELMA | 2" & wider | NDS-2018 Supplement | 4A |
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