Estimate roofing squares and bundles from roof area and waste percentage.
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A 2,000 sq ft roof with 10% waste equals 22 roofing squares.
Estimate roofing squares and bundles from roof area and waste percentage. It is designed for quick estimates and everyday problem solving. When a calculation affects a contract, tax filing, medical decision or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
A 2,000-square-foot roof with 10% waste needs 2,200 square feet of shingle coverage; at three bundles per roofing square, estimate 66 bundles.
A roofing square is 100 square feet, not one ordinary square foot.
Roof pitch, ridges, valleys, starter strips and individual shingle packaging change the order.
Related tools: Square Footage Calculator · Concrete Calculator
Estimate roofing squares and bundles from roof area and waste percentage.
Roofing squares = adjusted square feet ÷ 100. Bundles = roofing squares × bundles per square, rounded up.
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