How Many Bundles of Shingles in a Square?

Three. One roofing square is 100 square feet, and most asphalt shingles come three bundles to the square. The chart below turns roof size into bundles.

I know the
Units

Measure the walls, not the roof. The overhang is added for you.

Type 6 or 6/12. Rise in inches for every 12 inches of run.

Roof style
Bundles per square
Add your prices (optional)

Prices are never pre-filled and never stored. The estimate uses only what you type.

Bundles of shingles

47 bundles

15.50 squares with 10% extra × 3 bundles

Buy 47 bundles of shingles, plus 2 starter and 2 ridge cap.

  • Roof area1,409 sq ft (130.9 m²)
  • Squares14.09
  • Squares with extra15.50
  • Starter strip bundles2 (151.1 ft, estimated)
  • Ridge cap bundles2 (42.0 ft, estimated)
  • At your price per bundleAdd a price

Field shingles come from the area and your extra. Starter (about 120 ft per bundle) and ridge cap (about 25 ft per bundle) come from the edge lengths; leave them blank to use a simple gable or hip estimate.

Planning estimate, not a quote. Disclaimer

Bundles by roof size

Bundles at 3 per square, rounded up
Roof areaSquaresBundles, no extraWith 10% extraWith 15% extra
500 sq ft5151718
1,000 sq ft10303335
1,500 sq ft15455052
2,000 sq ft20606669
2,500 sq ft25758387
3,000 sq ft309099104
3,500 sq ft35105116121
4,000 sq ft40120132138

These are roof surface areas, not floor areas. To get the roof area from a floor plan, multiply by the pitch multiplier: 1.118 at 6/12. The roof square calculator does this for you.

When it is not three

GAF says most standard shingles, 3-tab and architectural, are three bundles per square, but some specialty products take four or five. GAF's own example is Woodland at four. The calculator above lets you choose 3, 4 or 5 bundles per square. Check the product wrapper before you order.

Extra for waste

GAF suggests adding 10 to 15% for trim and waste. A plain gable roof can sit near 10%; hip roofs, valleys and dormers push toward 15%. That is one more bundle for every 3 you would otherwise buy for 10 squares, or about 3 extra bundles on a 2,000 sq ft roof.

Frequently asked questions

How many bundles of shingles are in a square?

Three for most asphalt shingles. Each bundle covers about 33.3 sq ft.

How many bundles of shingles for a 2,000 sq ft roof?

That is 20 squares, so 60 bundles with no waste, 66 with 10% extra and 69 with 15%.

How many bundles of shingles for 1,500 sq ft?

45 with no waste and 50 with 10% extra, if 1,500 sq ft is the roof area.

How many bundles of shingles for a 10×10 area?

100 sq ft is one square: 3 bundles, or 4 with 10% extra.

How do I turn house size into roof area?

Multiply the footprint by the pitch multiplier: about 1.118 at 6/12. Use the calculator for the exact figure.

Related

Other roofing calculators

Sources