Roofing Calculator
Estimate roofing materials including squares, shingle bundles, underlayment, and nails. Accounts for roof pitch to calculate actual roof area from the footprint.
Inputs
Results
Roofing Squares
14.8
Bundles Needed
45
Estimated Cost
$1,575.00
Roofing Materials Breakdown
| Item | Quantity | Note |
|---|---|---|
| Footprint Area | 1,200 sq ft | 40 x 30 ft |
| Pitch Multiplier | 1.118 | 6/12 pitch |
| Actual Roof Area | 1,342 sq ft | Adjusted for pitch |
| With Waste | 1,476 sq ft | +10% waste |
| Roofing Squares | 14.8 | 100 sq ft each |
| Shingle Bundles | 45 | 3 per square |
| Underlayment Rolls | 4 | 400 sq ft per roll |
| Roofing Nails | 37 lbs | ~2.5 lbs per square |