How Much Siding Do I Need?

Find total wall area, subtract doors and windows, then divide by 100 to get siding squares.

Worked example

A home with 1,260 sq ft of wall minus 160 sq ft of openings = 1,100 sq ft = 11 squares, or about 12 squares with waste.

Estimate siding squares for your home's exterior walls.

Estimate roofing squares and shingle bundles by footprint and pitch.

Estimate gallons of paint by wall area, coats, and openings.