Lumber Calculator

Calculate lumber board feet

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Lumber Calculator

Calculate board feet for lumber purchases. Add multiple boards for a total.

Board Foot Formula: (Thickness in. × Width in. × Length ft) ÷ 12 = Board Feet

Total Board Feet

0

Total Pieces

0

How to Use Lumber Calculator

Enter dimensions

Enter thickness, width, and length.

Set quantity

Enter number of boards.

Calculate

See total board feet.

Why Choose AllTools Lumber Calculator?

  • ✓ Board feet formula
  • ✓ Multiple boards
  • ✓ Common sizes preset
  • ✓ Total calculation
  • ✓ Price estimate
  • ✓ No data stored

Why Use This Tool

  • ★ All calculations happen in your browser — project data stays private
  • ★ Completely free with no usage limits
  • ★ No account or registration required
  • ★ Practical results for real construction projects
  • ★ Works on mobile devices for on-site calculations

Related Resources

Calculate areas → Convert units → Calculate percentages →

Frequently Asked Questions

What is a board foot? ▼
A board foot is a volume measurement: 1" thick × 12" wide × 12" long (144 cubic inches).
What are common board sizes? ▼
Presets include 1x4, 1x6, 2x4, 2x6, 2x8, 2x10, 2x12, 4x4, and other standard dimensional lumber sizes.
Does this work on mobile? ▼
Yes. All AllTools tools are fully responsive and work on phones and tablets.

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