The working
- 1. Floor plan2,000 sq ft on one floor, as a 1.5:1 rectangle = 36.5 ft × 54.8 ft2,000 sq ft
- 2. Add overhangs(36.5 ft + 3) × (54.8 ft + 3), for 1.5 ft eaves on every side2,283 sq ft footprint
- 3. Roof surface2,283 sq ft footprint × 1.118 (6/12 pitch multiplier)2,552 sq ft
- 4. Squares to order2,552 ÷ 100 = 25.5 squares, + 10% waste (gable roof)28.1 squares
- 5. Installed2,552 sq ft × $4–$6 per sq ft (architectural asphalt shingles, HomeGuide, Nov 7, 2025)$10,209 – $15,314
- 6. Tear-off2,552 sq ft × $1–$3 per sq ft to remove one layer (HomeGuide)$2,552 – $7,657
- 7. PermitFlat fee, set locally (HomeGuide, Fixr)$100 – $500
- 8. Installed totalSum, rounded to $100 under $10,000 and $500 above$13,000 – $23,500
Prices are published national installed ranges (mostly HomeGuide, updated Nov 7, 2025), the same ones the roof cost calculator uses, for a straightforward re-roof with one old layer torn off. They are not adjusted for your state; the calculator can do that. Decking repairs, access, steep or cut-up roofs and the contractor all move the final price, so get at least two written quotes.
Squares and the materials list come from the same math as the roof calculator, which works them out for your own measurements.
This 2,000 sq ft house at other pitches
| Pitch | Roof surface | Squares | Asphalt shingles | Standing-seam metal |
|---|---|---|---|---|
| 3/12 | 2,353 sq ft | 23.5 | $12,000 – $21,500 | $23,500 – $45,000 |
| 4/12 | 2,406 sq ft | 24.1 | $12,000 – $22,000 | $24,000 – $46,000 |
| 6/12 (this house) | 2,552 sq ft | 25.5 | $13,000 – $23,500 | $25,500 – $49,000 |
| 8/12 | 2,744 sq ft | 27.4 | $14,000 – $25,000 | $27,500 – $52,500 |
| 10/12 | 2,972 sq ft | 29.7 | $15,000 – $27,000 | $30,000 – $57,000 |
| 12/12 | 3,228 sq ft | 32.3 | $16,000 – $29,500 | $32,500 – $62,000 |
Published ranges are priced per square foot of roof, so a steeper pitch costs more here only because it has more roof. Many roofers also add a steep-roof charge from about 7/12 or 8/12.
Same 2,000 sq ft, one storey or two (6/12, gable roof)
| House | Roof footprint | Squares | Asphalt shingles |
|---|---|---|---|
| One storey (this house) | 2,283 sq ft | 25.5 | $13,000 – $23,500 |
| Storey and a half | 1,566 sq ft | 17.5 | $8,900 – $16,500 |
| Two storeys | 1,203 sq ft | 13.4 | $6,800 – $12,500 |
A plain gable at 6/12 is the baseline most roofers quote from, which makes this the easiest size to compare quotes against.
Materials to order (asphalt shingles, gable roof)
| Material | Quantity | How it is worked out |
|---|---|---|
| Shingles | 85 bundles | 28.08 squares with 10% waste × 3 bundles per square |
| Synthetic underlayment | 3 rolls | 2,808 sq ft ÷ 1,000 sq ft per roll |
| Ice & water shield | 2 rolls | 3 ft along 117 ft of eaves, +5% laps |
| Starter strip | 3 bundles | 204 ft of eaves and rakes +5% ÷ 100 ft per bundle |
| Drip edge | 22 10 ft pieces | 204 ft of eaves and rakes +5% for laps |
| Hip & ridge cap | 3 bundles | 59 ft of ridges and hips +5% ÷ 25 ft per bundle |
Did hail hit your area? Insurance often covers hail damage. Check hail history for your city, with storm reports back to 1955.
Questions people ask
How many squares is a 2,000 sq ft house roof?
About 25.5 squares for this one-storey ranch at 6/12, or 28.1 to order with 10% waste. The tables show how storeys and pitch change that.
How many bundles of shingles for a 2,000 sq ft house?
About 85 bundles of architectural shingles at three bundles per square, including 10% waste for a gable roof.
What would standing-seam metal cost instead?
About $25,500 – $49,000 installed on the same roof, against $13,000 – $23,500 for asphalt, including tear-off of one old layer and a permit.
Is 6/12 a common pitch for a 2,000 sq ft house?
Yes, and it is walkable with care. The multiplier is 1.118, so the roof is 2,552 sq ft over a 2,283 sq ft footprint.
More roof cost guides
- Roof cost for a 1,000 sq ft house
- Roof cost for a 1,200 sq ft house
- Roof cost for a 1,500 sq ft house
- Roof cost for a 1,800 sq ft house
- Roof cost for a 2,200 sq ft house
- Roof cost for a 2,500 sq ft house
- Roof cost for a 3,000 sq ft house
- Roof cost for a 3,500 sq ft house
- Roof cost for a 4,000 sq ft house
- Flat roof cost and squares
- 3/12 pitch roof: multiplier, angle and cost
- 4/12 pitch roof: multiplier, angle and cost
- 5/12 pitch roof: multiplier, angle and cost