Free roofing calculator

How many squares of shingles do I need?

One roofing square = 100 sq ft of roof surface. Enter your house footprint, pick the pitch, and we'll compute squares needed, bundles to order (3 bundles per square), and a buffered total for waste.

Length × width at the eaves. Add for any covered porches or attached structures.

Pitch increases the actual roof area vs. the footprint.

10% standard for gable roofs. 15% for hip roofs, dormers, or complex cuts.

Architectural shingles run $35-$60/bundle. Premium can hit $80+.

Roofing materials needed

0 squares

Each square = 100 sq ft of roof.

Actual roof area
0 sq ft
Bundles needed (3 / square)
0 bundles
Order with waste buffer
0 squares
Estimated shingle cost
$0

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