Board Foot Calculator

Calculate Board Feet

About Board Feet

Board feet is a unit of measurement for lumber volume, representing the volume of a board that is 1 foot long, 1 foot wide, and 1 inch thick.

Board Feet Formula:

Board Feet = (Length × Width × Thickness) ÷ 144

Where:

  • Length = Length in inches
  • Width = Width in inches
  • Thickness = Thickness in inches
  • 144 = Conversion factor (12 × 12)

Common Lumber Sizes:

  • 2×4: 1.5" × 3.5"
  • 2×6: 1.5" × 5.5"
  • 2×8: 1.5" × 7.25"
  • 2×10: 1.5" × 9.25"
  • 2×12: 1.5" × 11.25"

Applications:

• Lumber pricing
• Material estimation
• Construction planning
• Woodworking projects
• Inventory management

Log Scaling:

• Doyle Rule: Most common
• Scribner Rule: West Coast
• International Rule: Precise
• Used for log volume estimation

Understanding board feet is essential for accurate lumber purchasing and project cost estimation in construction and woodworking.

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