Lumber Weight

How much does Sweetgum lumber weigh?

A Sweetgum 1×2, 8 ft weighs 2.2 lb (1.0 kg) at 12% moisture content, kiln-dried.

34.7 lb/ft³ · 1.33 bd ft ·

Sweetgum is a hardwood with a basic specific gravity of 0.46 (ovendry mass over green volume, USDA Wood Handbook Table 5-3b) — 34.7 lb/ft³ once dried to 12% moisture content. Its Janka side hardness is 850 lbf, the 13th hardest of the 46 species on this site. Green, freshly cut moisture content runs 79% in the heartwood to 137% in the sapwood. Total shrinkage from green to ovendry runs about 15.8% by volume.

Sweetgum weight by size

Sweetgum, one piece, 8 ft at 12% MC unless noted
SizeActual (dry)8 ft, 12% MCPer footGreen range
1×2 3/4″ × 1-1/2″ 2.2 lb 0.27 lb/ft 3.5–4.6 lb
1×3 3/4″ × 2-1/2″ 3.6 lb 0.45 lb/ft 5.7–7.6 lb
1×4 3/4″ × 3-1/2″ 5.1 lb 0.63 lb/ft 7.9–10.5 lb
1×6 3/4″ × 5-1/2″ 8.0 lb 0.99 lb/ft 12.6–16.6 lb
1×8 3/4″ × 7-1/4″ 10.5 lb 1.31 lb/ft 16.7–22.2 lb
1×10 3/4″ × 9-1/4″ 13.4 lb 1.67 lb/ft 21.2–28.1 lb
1×12 3/4″ × 11-1/4″ 16.3 lb 2.03 lb/ft 25.7–34.0 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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