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Nds Timber Design Values: MIXED OAK
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MIXED OAK | Construction | 900,000 | 330,000 | 925 | 800 | 850 | 550 | 170 | 0.68 | NELMA | 2" - 4" wide | NDS-2018 Supplement | 4A |
| MIXED OAK | No. 1 | 1,000,000 | 370,000 | 825 | 800 | 825 | 500 | 170 | 0.68 | NELMA | 2" & wider | NDS-2018 Supplement | 4A |
| MIXED OAK | No. 2 | 900,000 | 330,000 | 800 | 800 | 625 | 475 | 170 | 0.68 | NELMA | 2" & wider | NDS-2018 Supplement | 4A |
| MIXED OAK | No. 3 | 800,000 | 290,000 | 475 | 800 | 375 | 275 | 170 | 0.68 | NELMA | 2" & wider | NDS-2018 Supplement | 4A |
| MIXED OAK | No.1|Beams and Stringers|4D | 1,000,000 | 370,000 | 1,150 | 800 | 700 | 550 | 155 | 0.68 | NELMA | Beams and Stringers | NDS-2018 Supplement | 4D |
| MIXED OAK | No.1|Posts and Timbers|4D | 1,000,000 | 370,000 | 1,000 | 800 | 775 | 675 | 155 | 0.68 | NELMA | Posts and Timbers | NDS-2018 Supplement | 4D |
| MIXED OAK | No.2|Beams and Stringers|4D | 800,000 | 290,000 | 725 | 800 | 450 | 375 | 155 | 0.68 | NELMA | Beams and Stringers | NDS-2018 Supplement | 4D |
| MIXED OAK | No.2|Posts and Timbers|4D | 800,000 | 290,000 | 575 | 800 | 350 | 400 | 155 | 0.68 | NELMA | Posts and Timbers | NDS-2018 Supplement | 4D |
| MIXED OAK | Select Structural | 1,100,000 | 400,000 | 1,150 | 800 | 1,000 | 675 | 170 | 0.68 | NELMA | 2" & wider | NDS-2018 Supplement | 4A |
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