Roofing Calculator
Calculate roofing materials: shingles, underlayment, and nails
ft
ft
%
Helpful Tips
- One roofing "square" covers 100 sq ft
- Account for roof pitch - steeper roofs need more material
- Use ice and water shield in valleys and along eaves
- Most shingle warranties require proper ventilation
Formula Used
Squares = (Roof Area × Pitch Factor) ÷ 100 + WasteAbout This Calculator
Estimate roofing materials including shingles, underlayment, drip edge, and nails. Accounts for roof pitch, valleys, and waste factor.