Sample data from Engineering Database — 375 reference tables, deterministic calculators, and Engineering AI. Sign up free
Nds Timber Design Values: DOUGLAS FIR-LARCH
No. 2 to Select Structural|Posts and Timbers|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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DOUGLAS FIR-LARCH | No. 2 | 1,600,000 | 580,000 | 900 | 625 | 1,350 | 575 | 180 | 0.5 | WCLIB, WWPA | 2" & wider | NDS-2018 Supplement | 4A |
| DOUGLAS FIR-LARCH | No. 2 Dense|Beams and Stringers|4D | 1,400,000 | 510,000 | 1,000 | 730 | 700 | 500 | 170 | 0.5 | WWPA | Beams and Stringers | NDS-2018 Supplement | 4D |
| DOUGLAS FIR-LARCH | No. 2 Dense|Posts and Timbers|4D | 1,400,000 | 510,000 | 850 | 730 | 825 | 550 | 170 | 0.5 | WWPA | Posts and Timbers | NDS-2018 Supplement | 4D |
| DOUGLAS FIR-LARCH | No. 2|Beams and Stringers|4D | 1,300,000 | 470,000 | 875 | 625 | 600 | 425 | 170 | 0.5 | WCLIB | Beams and Stringers | NDS-2018 Supplement | 4D |
| DOUGLAS FIR-LARCH | No. 2|Posts and Timbers|4D | 1,300,000 | 470,000 | 750 | 625 | 700 | 475 | 170 | 0.5 | WCLIB | Posts and Timbers | NDS-2018 Supplement | 4D |
| DOUGLAS FIR-LARCH | No. 3 | 1,400,000 | 510,000 | 525 | 625 | 775 | 325 | 180 | 0.5 | WCLIB, WWPA | 2" & wider | NDS-2018 Supplement | 4A |
| DOUGLAS FIR-LARCH | Select Structural | 1,900,000 | 690,000 | 1,500 | 625 | 1,700 | 1,000 | 180 | 0.5 | WCLIB, WWPA | 2" & wider | NDS-2018 Supplement | 4A |
| DOUGLAS FIR-LARCH | Select Structural|Beams and Stringers|4D | 1,600,000 | 580,000 | 1,600 | 625 | 1,100 | 950 | 170 | 0.5 | WCLIB | Beams and Stringers | NDS-2018 Supplement | 4D |
| DOUGLAS FIR-LARCH | Select Structural|Posts and Timbers|4D | 1,600,000 | 580,000 | 1,500 | 625 | 1,150 | 1,000 | 170 | 0.5 | WCLIB | Posts and Timbers | NDS-2018 Supplement | 4D |
What else is in Engineering Database
Iron Engine ↗Engineering AI at ironengine.ai
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators