Roofing Calculator

Estimate shingle squares needed for any gable, hip, or flat roof. Applies pitch multiplier and waste factor with a materials breakdown including bundles and ridge caps.

Building Length (ft)

Building Width (ft)

Roof Pitch (rise:12)

Waste %

Gable Roof Type?

Results

Footprint (sq ft)

1200.00

Roof Area (sq ft)

1542.84

Squares

15.43

Bundles

47.00

RidgeCaps

1.20

\text{Squares} = \frac{L \times W \times m_{\text{pitch}}}{100} \times (1 + w)