Roofing & Siding calculators
Roof pitch, rafters, trusses and siding materials. Every calculator is free, works on your phone and shows the formula it uses.
CW-03Roof Pitch CalculatorPitch, angle, slope factor and roof area, four ways.CW-04Rafter Length CalculatorRafter length, birdsmouth, ridge height and hip rafters.CW-05Roof Truss CalculatorTruss count, cut list, loads and cost for six truss types.CW-06Siding CalculatorSquares, pieces and trim for any siding product.CW-07Vinyl Siding CalculatorBoxes, panels, J-channel, corners and starter strip.CW-08Board and Batten CalculatorBoards, battens and spacing, outside or as an accent wall.