Free
Roofing Calculator
Calculate roof area from plan measurements and pitch, then roofing squares and shingle bundles including waste.
Results
- Roof area
- 1,252.2 sq ft
- Squares
- 12.52
- Squares incl. 10% waste
- 13.77
- Shingle bundles (3 per square)
- 42
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Questions
What is a roofing square?
A square is 100 square feet of roof surface. Most shingle products need about 3 bundles per square — always check the packaging.
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