Carpentry Calculators

Plan lumber, decking, stairs, stringers, and rafters with board feet and piece counts.

Board Foot Calculator

Calculate board feet of lumber from thickness, width, length, and quantity.

Estimate how many deck boards you need for your deck size.

Calculate the number of steps, rise, and run from total height.

Calculate stringer length and notch dimensions for a staircase.

Calculate rafter length and count from span, pitch, and spacing.