Measurement basis
Wood weight changes with species, moisture, dimensions, and treatment. This calculator uses a density you supply rather than assigning one universal value to a species name. Enter the actual board thickness, width, length, and quantity to calculate solid wood volume and estimated weight. It can help plan handling or compare a material order with a vehicle payload, provided the density represents the stock being purchased. The output excludes packaging, surface water, hardware, and the uncertainty in real lumber. Use measured or supplier-provided weight when a lifting or transport limit is close.
Geometry, units and worked example
A worked example
Twenty boards measuring 1.5 × 5.5 in × 8 ft contain 9.1667 cubic feet. At an assumed 35 lb/cu ft, the total is about 320.83 lb.
Enter consistent dimensions
- Measure the actual section rather than nominal lumber dimensions.
- Obtain density appropriate to species, treatment, and moisture condition.
- Add packaging and other cargo separately before checking any transport limit.
Where the model stops
- Fresh, wet, or pressure-treated lumber can weigh substantially differently from dry stock of the same dimensions.
- A quoted average density is an estimate; individual boards vary. Allow for uncertainty in handling and delivery plans.
- This calculator does not determine safe lifting methods or the structural capacity of the wood.
Frequently asked questions
Why does wet lumber weigh more than dry lumber?
Water adds mass without a proportional increase in the measured board volume. Use a density for the moisture condition you have.
Should I enter a 2 × 6 as 2 inches by 6 inches?
Use actual measured dimensions for weight. Nominal labels are not necessarily the finished section dimensions.
Does the result include pallet weight?
No. Add pallets, straps, wrap, and other cargo when evaluating a shipment.
Read the project guides
- Board Feet vs Linear Feet: How to Read a Lumber Quote
Understand board-foot volume, linear-foot length, actual lumber dimensions, effective coverage, and what each price unit means for a project.
Calculation method: JICWH methodology. Examples are planning assumptions, not product recommendations.