How much does Black Walnut lumber weigh?
A Black Walnut 1×2, 8 ft weighs at 12% moisture content, kiln-dried.
38.8 lb/ft³ · 1.33 bd ft ·
Black Walnut is a hardwood with a basic specific gravity of 0.51 (ovendry mass over green volume, USDA Wood Handbook Table 5-3b) — 38.8 lb/ft³ once dried to 12% moisture content. Its Janka side hardness is 1,010 lbf, the 9th hardest of the 46 species on this site. Green, freshly cut moisture content runs 90% in the heartwood to 73% in the sapwood. Total shrinkage from green to ovendry runs about 12.8% by volume.
Black Walnut weight by size
| Size | Actual (dry) | 8 ft, 12% MC | Per foot | Green range |
|---|---|---|---|---|
| 1×2 | 3/4″ × 1-1/2″ | 2.4 lb | 0.30 lb/ft | 3.7–4.1 lb |
| 1×3 | 3/4″ × 2-1/2″ | 4.0 lb | 0.51 lb/ft | 6.1–6.7 lb |
| 1×4 | 3/4″ × 3-1/2″ | 5.7 lb | 0.71 lb/ft | 8.5–9.4 lb |
| 1×6 | 3/4″ × 5-1/2″ | 8.9 lb | 1.11 lb/ft | 13.4–14.8 lb |
| 1×8 | 3/4″ × 7-1/4″ | 11.7 lb | 1.47 lb/ft | 17.9–19.7 lb |
| 1×10 | 3/4″ × 9-1/4″ | 15.0 lb | 1.87 lb/ft | 22.7–24.9 lb |
| 1×12 | 3/4″ × 11-1/4″ | 18.2 lb | 2.27 lb/ft | 27.5–30.2 lb |
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: Tamarack (SG 0.49) · Denser: Longleaf Pine (SG 0.54)