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Construction & home

Board Feet Calculator

Measure lumber volume in board feet from inch dimensions.

Editable waste and coverage assumptionsCheck supplier specifications

Project measurements

Runs on your device

MATERIAL ESTIMATE

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this tool

  1. Enter thickness, width, length, number of boards.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Board feet = thickness(in) × width(in) × length(ft) × count/12.

A WORKED EXAMPLE

Using thickness = 2 in, width = 6 in, length = 8 ft, number of boards = 10, the result is 80 board ft. Change these example inputs to match your task; use the method above to check each step.

What to keep in mind

Use actual dimensions or nominal dimensions according to your purchasing convention. A material-quantity estimate, not a structural design or building-code check. Confirm site measurements, supplier coverage and waste before ordering.

Common questions

Which inputs does this calculation need?

Measure lumber volume in board feet from inch dimensions. Enter thickness in in, width in in, length in ft, number of boards. The filled example is editable and is not a saved personal record.

How should I interpret the result?

Use actual dimensions or nominal dimensions according to your purchasing convention. A material-quantity estimate, not a structural design or building-code check. Confirm site measurements, supplier coverage and waste before ordering.

Methodology maintained by ClarityKit. How these tools are built and checked.