Lumber Weight

How much does Red Pine lumber weigh?

A Red Pine 2×4, 8 ft weighs 8.9 lb (4.1 kg) at 12% moisture content, kiln-dried.

30.7 lb/ft³ · 5.33 bd ft ·

Red Pine is a softwood with a basic specific gravity of 0.41 (ovendry mass over green volume, USDA Wood Handbook Table 5-3b) — 30.7 lb/ft³ once dried to 12% moisture content. Its Janka side hardness is 560 lbf, the 23rd hardest of the 46 species on this site. Green, freshly cut moisture content runs 32% in the heartwood to 134% in the sapwood. Total shrinkage from green to ovendry runs about 11.3% by volume.

Red Pine weight by size

Red Pine, 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″ 3.8 lb 0.48 lb/ft 4.6–8.1 lb
2×3 1-1/2″ × 2-1/2″ 6.4 lb 0.80 lb/ft 7.5–13.3 lb
2×4 1-1/2″ × 3-1/2″ 8.9 lb 1.12 lb/ft 10.4–18.5 lb
2×6 1-1/2″ × 5-1/2″ 14.1 lb 1.76 lb/ft 16.5–29.2 lb
2×8 1-1/2″ × 7-1/4″ 18.5 lb 2.32 lb/ft 22.0–39.0 lb
2×10 1-1/2″ × 9-1/4″ 23.6 lb 2.95 lb/ft 27.9–49.4 lb
2×12 1-1/2″ × 11-1/4″ 28.8 lb 3.59 lb/ft 33.7–59.8 lb
4×4 3-1/2″ × 3-1/2″ 20.9 lb 2.61 lb/ft 23.8–42.2 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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