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How much roofing for a 2,800 sq ft house with 4/12 pitch?

Answer
32.5 squares (98 bundles)
Actual roof area: 3,246 sq ft (with pitch)Includes 10% waste factorEstimated shingle cost: $3,430–$5,390

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How We Calculated This

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

2,800 × pitch factor × 1.10 = 3,246 sq ft. Squares = 32.5. Bundles = 98.

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Calculated using verified formulas. Last updated March 2026.