How much does Black Locust lumber weigh?
A Black Locust 1×2, 8 ft weighs at 12% moisture content, kiln-dried.
51.6 lb/ft³ · 1.33 bd ft ·
Black Locust is a hardwood with a basic specific gravity of 0.66 (ovendry mass over green volume, USDA Wood Handbook Table 5-3b) — 51.6 lb/ft³ once dried to 12% moisture content. Its Janka side hardness is 1,700 lbf, the 2nd hardest of the 46 species on this site. The USDA Wood Handbook has no published green moisture content for Black Locust, so green weights are not shown for it. Total shrinkage from green to ovendry runs about 10.2% by volume.
Black Locust weight by size
| Size | Actual (dry) | 8 ft, 12% MC | Per foot | Green range |
|---|---|---|---|---|
| 1×2 | 3/4″ × 1-1/2″ | 3.2 lb | 0.40 lb/ft | — |
| 1×3 | 3/4″ × 2-1/2″ | 5.4 lb | 0.67 lb/ft | — |
| 1×4 | 3/4″ × 3-1/2″ | 7.5 lb | 0.94 lb/ft | — |
| 1×6 | 3/4″ × 5-1/2″ | 11.8 lb | 1.48 lb/ft | — |
| 1×8 | 3/4″ × 7-1/4″ | 15.6 lb | 1.95 lb/ft | — |
| 1×10 | 3/4″ × 9-1/4″ | 19.9 lb | 2.48 lb/ft | — |
| 1×12 | 3/4″ × 11-1/4″ | 24.2 lb | 3.02 lb/ft | — |
| 6×6 | 5-1/2″ × 5-1/2″ | 86.6 lb | 10.83 lb/ft | — |
Board-to-board variation of ±10-15% is normal even within one species and size. How these numbers are computed.
Related
- All species: wood species index
- By density: Lighter: Hickory (SG 0.64)