How much does a roof cost for an 1,800 sq ft house?
Three 1,800 square foot houses, three different roofs
- Two-story with a simple gable roof: about 900 square feet of footprint, so the main roof may be only 11 to 13 squares plus the garage. This is usually the least expensive version.
- One-story ranch with a hip roof: the full 1,800 feet sits under the roof, plus overhangs. With a moderate pitch that often comes to around 21 to 25 squares, and the hips add ridge cap and extra cutting.
- Story-and-a-half with dormers and a steep main roof: the area may fall in between, but steep pitch, dormer flashing, and valleys add hours and safety setup.
Items that belong in any quote
Whatever the house shape, a complete quote names the shingle line, the underlayment, leak barrier in the valleys and around penetrations, drip edge, starter strip, ridge cap, new pipe boots, ventilation, and how decking replacement is priced. When two quotes look thousands apart, it is usually because they describe different roofs, one with these items and one without.
Georgia factors that affect the number
Permits are pulled through your city or county, and Georgia moved to the 2024 International Residential Code with state amendments on January 1, 2026, so inspectors expect current details such as drip edge at eaves and rakes. Neighborhoods with an HOA may require approval of the shingle color before work starts, which affects scheduling more than price. Older homes in North Georgia sometimes hide a second layer of shingles or plank decking with gaps, both of which change the scope once the tear-off starts.
For statewide pricing context, see roof replacement cost in Georgia, and to compare bids fairly, read how to choose a roofing contractor in Georgia.