Siding area

Wall dimensions → net siding SF with waste.

Computes gross wall area, subtracts openings, and adds a waste allowance to size siding in SF and squares.

Inputs

Length (ft)

Height (ft)

Openings (SF)

Doors/windows to subtract.

Waste (%)

Enter values above to calculate.

Estimating guide — verify measurements and openings on site; waste varies by material and layout.