Roofing Calculator
Estimate shingles, underlayment, and materials for your roofing project.
Length of the roof
Width of the roof
Roof Options
Rise per foot of run (e.g., 6/12)
Bundle coverage area
Add waste for cuts
Price per bundle of shingles
Bundles
0
bundles
Squares
0.0
sq
Total Cost
$0
USD
Roof Area
0.0 ft²
Underlayment
0 rolls
Nails
0 lbs
Ridge Caps
0 bundles
Coverage per Bundle
0.0
ft²
Shape
Rectangle
selected
Pitch
0/12
selected
1 square = 100 ft². Most shingle bundles cover 30-33 ft². Add 10% for waste.
Bundles = (Area × Waste) / Bundle Coverage
1 roll of underlayment ≈ 400 ft²