Board Foot Calculator

Calculate board feet, linear feet, and project cost in seconds. Built for Colorado builders, woodworkers, and DIYers — by the lumber pros at Rocky Mountain Forest Products.

Rocky Mountain Forest Products

Board Foot Calculator

Common sizes
Dimensions
Optional

  • A board foot equals 144 cubic inches — a piece of lumber 1″ thick × 12″ wide × 12″ long.

  • No. Plywood is priced per sheet or per square foot. Board feet applies only to solid lumber.

  • Linear feet measures only length. Board feet measures volume (thickness × width × length). For cost comparisons across different sizes of lumber, board feet is the only honest unit.