Lumber Weight

How much does Engelmann Spruce lumber weigh?

An Engelmann Spruce 2×4, 8 ft weighs 7.1 lb (3.2 kg) at 12% moisture content, kiln-dried.

24.4 lb/ft³ · 5.33 bd ft ·

Engelmann Spruce is a softwood with a basic specific gravity of 0.33 (ovendry mass over green volume, USDA Wood Handbook Table 5-3b) — 24.4 lb/ft³ once dried to 12% moisture content. Its Janka side hardness is 390 lbf, the 40th hardest of the 46 species on this site. Green, freshly cut moisture content runs 51% in the heartwood to 173% in the sapwood. Total shrinkage from green to ovendry runs about 11% by volume.

Engelmann Spruce weight by size

Engelmann Spruce, one piece, 8 ft at 12% MC unless noted
SizeActual (dry)8 ft, 12% MCPer footGreen range
2×2 1-1/2″ × 1-1/2″ 3.0 lb 0.38 lb/ft 4.2–7.6 lb
2×3 1-1/2″ × 2-1/2″ 5.1 lb 0.63 lb/ft 6.9–12.5 lb
2×4 1-1/2″ × 3-1/2″ 7.1 lb 0.89 lb/ft 9.6–17.4 lb
2×6 1-1/2″ × 5-1/2″ 11.2 lb 1.40 lb/ft 15.2–27.5 lb
2×8 1-1/2″ × 7-1/4″ 14.7 lb 1.84 lb/ft 20.3–36.6 lb
2×10 1-1/2″ × 9-1/4″ 18.8 lb 2.35 lb/ft 25.7–46.4 lb
2×12 1-1/2″ × 11-1/4″ 22.8 lb 2.85 lb/ft 31.1–56.1 lb
4×4 3-1/2″ × 3-1/2″ 16.6 lb 2.07 lb/ft 21.9–39.7 lb

Board-to-board variation of ±10-15% is normal even within one species and size. How these numbers are computed.

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