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How much roofing for a 3,000 sq ft house with 7/12 pitch?

Answer
38.2 squares (115 bundles)
Actual roof area: 3,821 sq ft (with pitch)Includes 10% waste factorEstimated shingle cost: $4,025–$6,325

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How We Calculated This

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

3,000 × pitch factor × 1.10 = 3,821 sq ft. Squares = 38.2. Bundles = 115.

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Calculated using verified formulas. Last updated March 2026.