How much does Eastern Cottonwood lumber weigh?
A Cottonwood 1×2, 8 ft weighs at 12% moisture content, kiln-dried.
27.5 lb/ft³ · 1.33 bd ft ·
Eastern Cottonwood is a hardwood with a basic specific gravity of 0.37 (ovendry mass over green volume, USDA Wood Handbook Table 5-3b) — 27.5 lb/ft³ once dried to 12% moisture content. Its Janka side hardness is 430 lbf, the 36th hardest of the 46 species on this site. Green, freshly cut moisture content runs 162% in the heartwood to 146% in the sapwood. Total shrinkage from green to ovendry runs about 13.9% by volume.
Eastern Cottonwood weight by size
| Size | Actual (dry) | 8 ft, 12% MC | Per foot | Green range |
|---|---|---|---|---|
| 1×2 | 3/4″ × 1-1/2″ | 1.7 lb | 0.21 lb/ft | 3.9–4.1 lb |
| 1×3 | 3/4″ × 2-1/2″ | 2.9 lb | 0.36 lb/ft | 6.3–6.7 lb |
| 1×4 | 3/4″ × 3-1/2″ | 4.0 lb | 0.50 lb/ft | 8.8–9.4 lb |
| 1×6 | 3/4″ × 5-1/2″ | 6.3 lb | 0.79 lb/ft | 13.9–14.8 lb |
| 1×8 | 3/4″ × 7-1/4″ | 8.3 lb | 1.04 lb/ft | 18.5–19.7 lb |
| 1×10 | 3/4″ × 9-1/4″ | 10.6 lb | 1.32 lb/ft | 23.4–25.0 lb |
| 1×12 | 3/4″ × 11-1/4″ | 12.9 lb | 1.61 lb/ft | 28.4–30.2 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: W. White Pine (SG 0.35) · Denser: Red Alder (SG 0.37)