Roofing Calculator
Calculate shingles, metal roofing, underlayment, and accessories for complete roofing projects
Roof Specifications
Roofing Material
$
Per square (100 sq ft)
Additional Components
Ridge vents for proper attic ventilation
Roof Area Calculation
Enter your building length and width to begin.
Pick a roof type, pitch, and material — we’ll size shingles, underlayment, and accessories.
- Roof area, squares, and waste factor
- Underlayment, ice shield, and ridge vent options
- Cost breakdown including accessories and nails
Total project cost appears here when inputs are complete.