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How much roofing for a 2,500 sq ft house with 9/12 pitch?

Answer
34.4 squares (104 bundles)
Actual roof area: 3,438 sq ft (with pitch)Includes 10% waste factorEstimated shingle cost: $3,640–$5,720

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How We Calculated This

Squares = (Footprint × Pitch Multiplier × 1.10) / 100

2,500 × pitch factor × 1.10 = 3,438 sq ft. Squares = 34.4. Bundles = 104.

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Calculated using verified formulas. Last updated March 2026.