Wood Beam Weight Calculator

Summary

This tool computes the weight of a rectangular wood beam based on its cross-section dimensions, length, and the density of the chosen wood species. It supports common structural and finish lumber species and outputs results in both US customary (pounds) and metric (kilograms) units. All calculation is done instantly in your browser with no data sent to any server.

How it works

1. Enter the beam width (in inches or millimeters) using the unit toggle.
2. Enter the beam height (depth of the cross-section).
3. Enter the beam length.
4. Select a wood species from the dropdown to apply its standard green or dry density.
5. The calculator multiplies cross-section area by length to get volume, then multiplies by density to return the weight in lb and kg.

Use cases

• Estimate structural lumber weight for load calculations in construction projects.
• Determine shipping weight of custom-milled timber orders.
• Plan crane or lift capacity for heavy timber framing.
• Compare beam weight across species to optimize material selection.
• Calculate dead load contribution of wood members for engineering analysis.
• Verify material takeoffs for cost and logistics estimates.

Frequently Asked Questions