How much does wood weigh per cubic foot?

Wood weight varies by species: Oak weighs 44-47 lb/ft³, pine weighs 28-35 lb/ft³, cedar weighs 23 lb/ft³, and plywood averages 34 lb/ft³. Hardwoods are typically 50% heavier than softwoods.

How much does a board foot of lumber weigh?

A board foot of kiln-dried oak weighs about 3.3-3.5 lbs. Pine board feet weigh 2.1-2.6 lbs. A board foot equals 144 cubic inches (12" × 12" × 1").

Does moisture affect wood weight?

Yes, significantly. Green (freshly cut) lumber can weigh 50-100% more than kiln-dried lumber. Our wood calculator uses kiln-dried weights for accuracy.

Which is heavier, hardwood or softwood?

Hardwoods are generally 50-60% heavier than softwoods. Oak averages 44-47 lb/ft³ while pine averages 28-35 lb/ft³.

How much does a 2x4 weigh?

A kiln-dried 8-foot 2×4 of pine/SPF (spruce-pine-fir) weighs approximately 9-11 lbs . Pressure-treated 2×4s weigh 13-15 lbs due to chemical saturation. Oak 2×4s weigh about 15-16 lbs.

How much does a sheet of plywood weigh?

A standard 4×8 foot sheet of 3/4" plywood weighs approximately 60-70 lbs . Thinner 1/2" plywood weighs 40-48 lbs, and 1/4" plywood weighs 22-25 lbs per sheet.

What is the lightest wood species?

Balsa wood is the lightest commercial wood at just 7-9 lb/ft³ (112-144 kg/m³). Among common construction woods, western red cedar is one of the lightest at 23 lb/ft³. Compare this to dense hardwoods like white oak at 47 lb/ft³.

Wood Weight Calculator

How much does wood weigh?

Oak: 44-47 lb/ft³ | Pine: 28-35 lb/ft³

Hardwoods are 50% heavier than softwoods. Moisture adds 50-100% more weight.

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Calculations verified using ASTM D2395 standard density values

Last updated: February 2026

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Oak Weight

44-47 lb/ft³

Pine Weight

28-35 lb/ft³

Plywood Weight

34 lb/ft³

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47 lb/ft³

Concrete Weight

150 lb/ft³

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490 lb/ft³

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Wood Weight Calculator

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Oak Weight

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