How much does Redwood lumber weigh?
A Redwood 2×4, 8 ft weighs at 12% moisture content, kiln-dried.
28.3 lb/ft³ · 5.33 bd ft ·
Redwood is a softwood with a basic specific gravity of 0.38 (ovendry mass over green volume, USDA Wood Handbook Table 5-3b) — 28.3 lb/ft³ once dried to 12% moisture content. Its Janka side hardness is 480 lbf, the 32nd hardest of the 46 species on this site. Green, freshly cut moisture content runs 86% in the heartwood to 210% in the sapwood.
Redwood weight by size
| Size | Actual (dry) | 8 ft, 12% MC | Per foot | Green range |
|---|---|---|---|---|
| 1×2 | 3/4″ × 1-1/2″ | 1.8 lb | 0.22 lb/ft | 3.0–5.0 lb |
| 1×3 | 3/4″ × 2-1/2″ | 2.9 lb | 0.37 lb/ft | 4.9–8.2 lb |
| 1×4 | 3/4″ × 3-1/2″ | 4.1 lb | 0.52 lb/ft | 6.8–11.4 lb |
| 1×6 | 3/4″ × 5-1/2″ | 6.5 lb | 0.81 lb/ft | 10.8–18.0 lb |
| 1×8 | 3/4″ × 7-1/4″ | 8.5 lb | 1.07 lb/ft | 14.4–23.9 lb |
| 1×10 | 3/4″ × 9-1/4″ | 10.9 lb | 1.36 lb/ft | 18.2–30.3 lb |
| 1×12 | 3/4″ × 11-1/4″ | 13.3 lb | 1.66 lb/ft | 22.0–36.7 lb |
| 2×2 | 1-1/2″ × 1-1/2″ | 3.5 lb | 0.44 lb/ft | 6.0–10.0 lb |
| 2×3 | 1-1/2″ × 2-1/2″ | 5.9 lb | 0.74 lb/ft | 9.8–16.4 lb |
| 2×4 | 1-1/2″ × 3-1/2″ | 8.2 lb | 1.03 lb/ft | 13.6–22.7 lb |
| 2×6 | 1-1/2″ × 5-1/2″ | 13.0 lb | 1.62 lb/ft | 21.5–35.9 lb |
| 2×8 | 1-1/2″ × 7-1/4″ | 17.1 lb | 2.14 lb/ft | 28.7–47.9 lb |
| 2×10 | 1-1/2″ × 9-1/4″ | 21.8 lb | 2.72 lb/ft | 36.4–60.6 lb |
| 2×12 | 1-1/2″ × 11-1/4″ | 26.5 lb | 3.31 lb/ft | 44.0–73.4 lb |
| 4×4 | 3-1/2″ × 3-1/2″ | 19.2 lb | 2.41 lb/ft | 31.1–51.9 lb |
| 6×6 | 5-1/2″ × 5-1/2″ | 47.5 lb | 5.94 lb/ft | 74.2–124 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: Ponderosa Pine (SG 0.38) · Denser: Yellow Poplar (SG 0.4)