Shingles for a 3,100 sq ft roof
103 bundles of shingles
for 3,100 sq ft of roof (31 squares) with 10% waste, at 3 bundles per square.
Materials for a 3,100 sq ft roof
| Squares | 31 |
|---|---|
| Bundles, gable roof (10% waste) | 103 |
| Bundles, hip roof or valleys (15% waste) | 107 |
| Synthetic underlayment (1,000 sq ft rolls) | 4 |
| #15 felt (400 sq ft rolls) | 8 |
| Roofing nails | about 78 lb |
If 3,100 sq ft is the footprint, not the roof
Measured flat from above, a footprint of 3,100 sq ft makes a bigger roof once you account for the slope:
| Pitch | Roof area | Squares | Bundles |
|---|---|---|---|
| 4/12 | 3,268 sq ft | 32.7 | 108 |
| 6/12 | 3,466 sq ft | 34.7 | 115 |
| 8/12 | 3,726 sq ft | 37.3 | 123 |
| 10/12 | 4,035 sq ft | 40.4 | 134 |
| 12/12 | 4,384 sq ft | 43.8 | 145 |
Start from your house footprint instead
Other roof sizes
- 2,500 sq ft
- 2,600 sq ft
- 2,700 sq ft
- 2,800 sq ft
- 2,900 sq ft
- 3,000 sq ft
- 3,200 sq ft
- 3,300 sq ft
- 3,400 sq ft
- 3,500 sq ft
- 3,600 sq ft
- 3,700 sq ft
Questions
- How many bundles of shingles for a 3,100 sq ft roof?
- 103 bundles: 31 squares plus 10% waste, at 3 bundles per square. Allow 107 for a hip roof or one with valleys.
- How many squares is a 3,100 sq ft roof?
- 31 squares (a square is 100 sq ft of roof).
- How much does it cost to shingle a 3,100 sq ft roof?
- Shingles alone run about $4,120 at $40 a bundle. A full asphalt shingle replacement typically costs $4 to $8 per sq ft installed: $12,400 to $24,800.
- My house is 3,100 sq ft. How big is the roof?
- Bigger than the house. For a one-story 3,100 sq ft house with a 6/12 roof and 1 ft overhangs, the roof is roughly 3,880 sq ft. Two-story homes have about half the roof area for the same floor space.