Use this lumber weight calculator to estimate weight from actual dimensions or total , species density, quantity, and moisture content. The result exposes the density and volume used so you can see what drives the estimate instead of relying on a generic weight-per-board shortcut.
Check the weight inputs
Weight is only as credible as the actual dimensions, species identification, moisture estimate, and scope of what is included.
Worked example
- One actual 1.5 × 3.5 × 8 board has 0.2917 cubic ft of wood.
- At the 34 12%-moisture density used by the engine, one board is about 9.92 .
- Ten boards total about 99.17 before straps, hardware, mud, ice, or other cargo.
Keep uncertainty proportional to the decision
A shop-handling estimate can tolerate average density. A vehicle, rack, hoist, or crane near its limit cannot. Add margin and obtain a scale weight or qualified approval when the consequence of an underestimate is material.
Boards, panels, and logs are different products
This engine models rectangular solid lumber. Adhesives and layered construction change panel density, while taper, bark, voids, and moisture gradients make logs a different calculation. Use the matching product-specific tool or measured data.
Frequently asked questions
How much does a 2x6 weigh per foot?
It depends on actual cross-section, species, and moisture. Enter actual thickness and width, set length to 1 and quantity to 1, then read Weight per linear foot.
How much does pressure treated lumber weigh?
There is no single treated-lumber multiplier. Weight varies with species, treatment retention, and especially retained moisture. Enter actual size and the best available moisture estimate, then weigh a sample for load-critical work.
How much does one 2x4x8 weigh?
A common dressed 1.5 × 3.5 × 8 Douglas-fir (Coast) board at 12% moisture is about 9.92 with this calculator's average density. Another species or a wetter board can differ.
What is the wood weight calculation formula?
Weight equals solid-wood volume multiplied by density. Dimensions establish volume; species and moisture establish the density estimate used.