Measure twice, calculate once.

20 free calculators for framing, decking, fencing, and finish carpentry — board feet, rafters, stair stringers, fence materials, and more.

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Convert lumber dimensions into board feet for ordering and pricing.

Work out riser height, tread depth, and number of steps from total rise.

Get an overall materials estimate: posts, rails, and pickets for a wood fence run.

Estimate linear feet and stock pieces of crown molding needed for a room.

Estimate linear feet of decking needed from deck area, board width, and gap spacing.

Calculate total lumber cost from board footage and price per board foot.