How much does a 2x4x8 weigh?

A kiln-dried SPF 2x4x8 weighs about 9 lbs. Green (wet) lumber can weigh 30-50% more. Douglas Fir and SYP are heavier than SPF.

How do I calculate lumber weight?

Multiply width × depth × length (in feet) to get cubic feet, then multiply by the species density (lb/ft³). Use actual dimensions, not nominal.

Green lumber contains moisture (often 30-80% MC). Kiln drying reduces moisture to 6-19%, removing significant water weight.

A standard pickup can carry about 1,000 lbs. Half-ton trucks handle 1,500 lbs, 3/4-ton trucks 2,500 lbs, and flatbed trailers up to 10,000 lbs.

Among common lumber species, Ipe at ~69 lb/ft³ (dry) is one of the heaviest. Lignum Vitae can exceed 80 lb/ft³.

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Lumber Weight Calculator

Calculate the weight of lumber by species and size. 43 species with green and kiln-dried densities.

Width (in)

Depth (in)

Length

Quantity

8.2 lbs

3.7 kg · 1 piece

Per piece8.2 lbs

Per linear foot1.02 lbs/ft

Board feet5.3 BF

Density (dry)28 lb/ft³

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