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Roof cost for a 1,000 sq ft house

Worked out for a 1,000 sq ft one-storey cottage with a 4/12 gable roof, with tables for other pitches, storeys and materials.

1,000 sq ft · one-storey cottage · 4/12

$6,400 – $12,000

1,268 sq ft of roof, 13.9 squares to order (10% waste) · installed, incl. tear-off of one layer and a permit

Change the numbers in the roof cost calculator

The working

  1. 1. Floor plan1,000 sq ft on one floor, as a 1.5:1 rectangle = 25.8 ft × 38.7 ft1,000 sq ft
  2. 2. Add overhangs(25.8 ft + 3) × (38.7 ft + 3), for 1.5 ft eaves on every side1,203 sq ft footprint
  3. 3. Roof surface1,203 sq ft footprint × 1.054 (4/12 pitch multiplier)1,268 sq ft
  4. 4. Squares to order1,268 ÷ 100 = 12.7 squares, + 10% waste (gable roof)13.9 squares
  5. 5. Installed1,268 sq ft × $4–$6 per sq ft (architectural asphalt shingles, HomeGuide, Nov 7, 2025)$5,071 – $7,606
  6. 6. Tear-off1,268 sq ft × $1–$3 per sq ft to remove one layer (HomeGuide)$1,268 – $3,803
  7. 7. PermitFlat fee, set locally (HomeGuide, Fixr)$100 – $500
  8. 8. Installed totalSum, rounded to $100 under $10,000 and $500 above$6,400 – $12,000

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 1,000 sq ft house at other pitches

PitchRoof surfaceSquaresAsphalt shinglesStanding-seam metal
3/121,240 sq ft12.4$6,300 – $11,500$12,500 – $24,000
4/12 (this house)1,268 sq ft12.7$6,400 – $12,000$13,000 – $24,500
6/121,345 sq ft13.4$6,800 – $12,500$13,500 – $26,000
8/121,445 sq ft14.5$7,300 – $13,500$14,500 – $28,000
10/121,565 sq ft15.7$7,900 – $14,500$16,000 – $30,000
12/121,701 sq ft17.0$8,600 – $16,000$17,000 – $33,000

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 1,000 sq ft, one storey or two (4/12, gable roof)

HouseRoof footprintSquaresAsphalt shingles
One storey (this house)1,203 sq ft12.7$6,400 – $12,000
Storey and a half834 sq ft8.8$4,500 – $8,400
Two storeys646 sq ft6.8$3,500 – $6,600

Small, low gable roofs are the simplest to re-roof: short ridges, no hips or valleys, and a crew that can walk the whole roof. The permit is a bigger share of the total on a small job.

Materials to order (asphalt shingles, gable roof)

MaterialQuantityHow it is worked out
Shingles42 bundles13.94 squares with 10% waste × 3 bundles per square
Synthetic underlayment2 rolls1,394 sq ft ÷ 1,000 sq ft per roll
Ice & water shield2 rolls3 ft along 85 ft of eaves, +5% laps
Starter strip2 bundles145 ft of eaves and rakes +5% ÷ 100 ft per bundle
Drip edge16 10 ft pieces145 ft of eaves and rakes +5% for laps
Hip & ridge cap2 bundles42 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 1,000 sq ft house roof?

About 12.7 squares for this one-storey cottage at 4/12, or 13.9 to order with 10% waste. The tables show how storeys and pitch change that.

How many bundles of shingles for a 1,000 sq ft house?

About 42 bundles of architectural shingles at three bundles per square, including 10% waste for a gable roof.

What would standing-seam metal cost instead?

About $13,000 – $24,500 installed on the same roof, against $6,400 – $12,000 for asphalt, including tear-off of one old layer and a permit.

Is 4/12 a common pitch for a 1,000 sq ft house?

Yes, and it is walkable with care. The multiplier is 1.054, so the roof is 1,268 sq ft over a 1,203 sq ft footprint.

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