Wood Properties: Fir, Subalpine
Wood mechanical, physical, and thermal properties for 190+ hardwood and softwood species at green and 12% moisture content — including strength, stiffness, hardness, shrinkage, thermal conductivity, Poisson ratios, and elastic ratios from the USDA Wood Handbook
| species name | moisture content | category | compression parallel kPa (kPa) | compression perpendicular kPa (kPa) | elastic ratio ER EL (dimensionless) | elastic ratio ET EL (dimensionless) | elastic ratio GLR EL (dimensionless) | elastic ratio GLT EL (dimensionless) | elastic ratio GRT EL (dimensionless) | modulus of elasticity MPa (MPa) | modulus of rupture kPa (kPa) | origin | poisson LR (dimensionless) | poisson LT (dimensionless) | poisson RT (dimensionless) | poisson TR (dimensionless) | shear parallel kPa (kPa) | side hardness N (N) | specific gravity (dimensionless) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fir, Subalpine | 12% | Softwood | 33,500 | 2,700 | 0.102 | 0.039 | 0.07 | 0.058 | 0.006 | 8,900 | 59,000 | Domestic | 0.341 | 0.332 | 0.437 | 0.336 | 7,400 | 1,600 | 0.32 |
| Fir, Subalpine | Green | Softwood | 15,900 | 1,300 | — | — | — | — | — | 7,200 | 34,000 | Domestic | — | — | — | — | 4,800 | 1,200 | 0.31 |
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