Calculate shingles, underlayment, and roofing materials
Calculate roofing materials including shingles, underlayment, and accessories for your roof.
Square: 100 sq ft of roofing
Bundle: 3 bundles = 1 square
Underlayment: Felt paper beneath shingles
• Add 10-15% for waste and cuts
• Order extra shingles for future repairs
• Check weather before installation