Framing & Lumber calculators

Calculate board feet for any lumber order. Enter thickness, width, length, and piece count to get total board feet, linear feet, and estimated cost.

Count floor joists from room size and spacing. Get the joist count at 12, 16, 19.2 or 24 inches on center, rim joist footage, and estimated lumber cost.

Calculate how many sheets of plywood or OSB sheathing you need. Enter the area, sheet size, and waste to get sheet count and estimated material cost.

Calculate rafter length from building width and roof pitch. Get run, rise, roof angle, and a cut length that includes overhang and ridge deduction.

Calculate how many studs a wall needs at 16 or 24 inch on center. Get the stud count with corners and openings, plate lumber, and estimated material cost.