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How much roofing for a 3,500 sq ft house with 6/12 pitch?

Answer
43 squares (130 bundles)
Actual roof area: 4,304 sq ft (with pitch)Includes 10% waste factorEstimated shingle cost: $4,550–$7,150

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How We Calculated This

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

3,500 × pitch factor × 1.10 = 4,304 sq ft. Squares = 43. Bundles = 130.

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Calculated using verified formulas. Last updated March 2026.