How many shingle bundles are in a square?

Most architectural shingles come three bundles per square (100 sq ft).

Does roof area equal house square footage?

No — pitch adds surface. A steep roof can be 20–40% larger than the footprint below it.

Add 10% for simple roofs and up to 15% for cut-up roofs with many valleys and hips.

Roofing Squares Calculator

A roofing square is 100 square feet of roof surface. Divide roof area by 100 for squares, then multiply by 3 for standard shingle bundles.

Roof area(sq ft)

Waste(%)

Your result

Roofing squares

Shingle bundles66

Area with waste2,200 sq ft

Turn length and width into square feet, square yards and square meters.

Total material cost from quantity, unit price and waste.

Which roll-off dumpster size fits your project's debris.

Full tear-off and re-roof scoped from photos and pitch.

Leaks, missing shingles and flashing fixes, priced fast.

EstimateVision reads the scope from photos, video and voice, prices it for your area, and sends a signed proposal on the spot.