How to Use This Calculator

Step-by-Step Instructions

1. Enter your roof length (feet)
2. Enter your roof width (feet)
3. Enter your roof pitch
4. Enter your low (3/12)
5. Enter your medium (6/12)
6. Enter your steep (9/12)
7. Enter your very steep (12/12)
8. Enter your cost per square ($)
9. Enter your roofing squares
10. Enter your shingle bundles
11. Enter your actual roof area
12. Enter your estimated material cost
13. Enter your flat area
14. Results appear instantly — no button needed

Formula

Frequently Asked Questions

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