Construction

Roofing Calculator

Estimate sloped roof surface area, total squares (100 sq ft) and shingle bundles needed.

Inputs

Building Length (ft)

Building Width (ft)

Roof Pitch (rise per 12)

Waste (%)

Result

Roof area

1,476 sq ft

Squares (100 sq ft)14.8

Shingle bundles (≈3/sq)45

Pitch factor1.118

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