Calculator category

Carpentry Calculators

Fast layout math for framing, boards, stairs, spacing, trim, and deck projects.

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

Estimate wall studs from wall length and on-center spacing.

Estimate deck boards from deck size, board width, gap, and waste.

Calculate fence pickets needed from fence length, picket width, and gap.

Estimate baluster count for a railing section.

Calculate approximate stair rise, run, and stringer length.

Calculate rafter length from span and roof pitch.

Estimate joist count from deck or floor width and spacing.

Estimate trim length around a rectangular room.

Estimate 4x8 sheet count from total square footage.