Construction & Trades

Lumber Board Foot (BF) & Cost Calculator

Essential for woodworkers, carpenters, and lumberyards. Calculate precise board footage for rough-sawn hardwood and dimensional lumber using standard industry formulas, with total cost estimation.

Computed locally on your device.
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How to Use Lumber Board Foot Calculator

1

Input Board Dimensions

Enter Thickness (in), Width (in), and Length (in or ft).

2

Set Quantity & Price

Specify the number of identical pieces and optional price per board foot.

3

Review Total

View total board feet, volume, and total order cost.

About Lumber Board Foot Calculator

A 'board foot' is a unit of volume in the North American lumber industry representing a piece of wood measuring 1 inch thick, 12 inches wide, and 12 inches long (144 cubic inches). Hardwood lumber is almost universally priced and traded by the board foot.

Key Features

  • Standard Board Foot Formula: (Thickness" × Width" × Length') / 12
  • Multi-item lumber list: calculate walnut, oak, maple, and pine in one batch
  • Waste allowance buffer toggle (15% recommended for rough hardwood defects)
  • Instant total cost calculation based on $/BF price quotes
  • Exports clean cutting bill of materials summary

Frequently Asked Questions

Board Feet = (Thickness in inches × Width in inches × Length in feet) / 12. If length is in inches: (Thickness × Width × Length) / 144.