Convert footprint and pitch into a realistic shingle order instead of underestimating roof surface area.
Roofing Order
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Enter roof dimensions, pitch, and waste allowance to estimate squares and bundle count.
Tap an example to prefill the calculator with sample values.
Basic gable roof
6/12 pitch on a 40 x 30 footprint
A common residential roof where pitch and waste drive the shingle order more than footprint alone.
Result: The pitch pushes the roof well above the raw footprint, and bundles round up quickly.
Low-slope ranch
Wide but simpler roof geometry
A broader roof with fewer facets where the bundle count stays driven by surface area rather than complexity.
Result: Fewer valleys reduce complexity, but wide footprints still consume a lot of shingles.
Steeper remodel
Higher pitch with extra roof planes
Steep roofs are where pitch multiplier and extra cuts start to matter materially.
Result: Complex geometry compounds waste, so the shingle order grows faster than footprint suggests.