Roofing Calculator
Estimate roofing materials (shingles, underlayment, nails) based on roof area and pitch.
How to Use the Roofing Calculator
- 1
Enter roof footprint
Input the length and width of the building footprint.
- 2
Enter roof pitch
Specify the roof slope (rise over run, e.g., 6/12).
- 3
View materials
See squares of shingles, rolls of underlayment, and nails needed.
💡 Tips & Tricks
- •Always install ice and water shield in valleys and at eaves in cold climates.
- •Proper attic ventilation extends shingle life by 25%+.
- •Order 10–15% extra shingles for waste, hip/ridge caps, and future repairs.
Frequently Asked Questions
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