How much does a 2x4 weigh?

A standard 8-foot 2x4 weighs approximately 9 pounds when dry (kiln-dried). A green or wet 2x4x8 can weigh up to 13-14 pounds. The actual dimensions of a 2x4 are 1.5 inches by 3.5 inches.

Lumber Weight Calculator — How Much Does Lumber Weigh?

Q: How much does lumber weigh?

Lumber weight varies by wood species and moisture content. Dry dimensional lumber typically weighs 25–35 lbs per cubic foot. A standard 2x4x8 weighs about 9 lbs dry. Green or wet lumber weighs significantly more — up to 50% heavier than kiln-dried lumber.

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Kiln-dried / dry lumber

Green / pressure-treated (40% heavier)

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How much does lumber weigh?

Lumber weight varies significantly by wood species, moisture content, and dimensions. As a general rule, kiln-dried dimensional lumber weighs 25–30 lbs per cubic foot. Green or pressure-treated lumber can weigh 30–50% more due to moisture content.

Lumber size	8 ft (dry)	8 ft (green)
2×4	~9 lbs	~13 lbs
2×6	~14 lbs	~20 lbs
2×8	~18 lbs	~25 lbs
4×4	~17 lbs	~24 lbs
Plywood 4×8 (3/4")	~61 lbs	~61 lbs
OSB 4×8 (7/16")	~46 lbs	~46 lbs

Dumpster sizes for lumber

Lumber is bulky but relatively light compared to concrete or shingles. For most construction debris loads you'll hit the dumpster's volume limit before the weight limit. The exception is green or pressure-treated lumber, which can get surprisingly heavy in bulk.

Small framing scraps

10-yard handles most small remodel cutoffs and scraps

Deck or fence removal

20-yard is the standard choice for deck demo

Full framing teardown

30-yard or multiple loads for whole-structure demolition

FAQ

How much does a 2x4x8 weigh?+

A standard kiln-dried 2×4×8 weighs approximately 9 pounds. A green (wet) or pressure-treated 2×4×8 weighs around 13–14 pounds due to moisture content.

How much does plywood weigh?+

A 4×8 sheet of 3/4-inch plywood weighs approximately 61 pounds. 1/2-inch plywood is about 48 pounds per sheet. 1/4-inch is around 22 pounds per sheet.

Is pressure-treated lumber heavier than regular lumber?+

Yes — significantly. Pressure-treated lumber contains preservative chemicals and moisture that add 30–50% to the weight of the same size dry lumber. A pressure-treated 2×4×8 weighs about 13 lbs compared to 9 lbs for kiln-dried.

Can I put lumber in a regular dumpster?+

Yes — clean lumber and wood construction debris are accepted in standard roll-off dumpsters. Painted or stained wood, particle board, and MDF are also generally accepted. Treated lumber containing arsenic (old CCA-treated wood, common before 2004) may require special disposal — check with your provider.

Lumber Weight Calculator

How much does lumber weigh?

Dumpster sizes for lumber

Small framing scraps

Deck or fence removal

Full framing teardown

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