How much does a square of shingles cover?
Quick Answer
One roofing square covers exactly 100 square feet of roof surface. This is the universal standard in the roofing industry — one square always equals 100 sq ft regardless of shingle type or brand. Three bundles of standard asphalt shingles make one square. Roofers price labor and materials by the square.
Quick Reference Table
| Roof footprint + pitch | Squares needed |
|---|---|
| 1,000 sq ft / flat | 10 squares |
| 1,000 sq ft / 4:12 | 10.5 squares |
| 1,500 sq ft / 4:12 | 15.8 squares |
| 2,000 sq ft / 4:12 | 21 squares |
| 2,000 sq ft / 6:12 | 22.4 squares |
| 2,500 sq ft / 6:12 | 28 squares |
How to Calculate It Yourself
- 1
Measure your roof's flat footprint (house length × width).
- 2
Multiply by pitch factor: 4:12 = ×1.054, 6:12 = ×1.118, 8:12 = ×1.202, 12:12 = ×1.414.
- 3
Divide by 100 to get squares.
- 4
Add 10% waste: multiply by 1.10. This is your order quantity in squares.
Pro Tip
When getting contractor quotes, always verify they're quoting the same number of squares. Measure your own roof or ask for the square count in writing — it's easy to compare bids when everyone is working from the same number.
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