Roof size reference
Roof size for a 1,700 sq ft house
One story: about 19.7–22.5 squares (1,971–2,248 sq ft of roof) at 4/12–8/12. Two stories: about 9.9–11.2 squares over a 850 sq ft footprint.
1,700 sq ft ranch, by pitch
| Pitch | Roof sq ft | Squares | Bundles* | Ice barrier sq ft |
|---|---|---|---|---|
| 4/12 | 1,971 | 19.7 | 66 | 636 |
| 5/12 | 2,026 | 20.3 | 67 | 636 |
| 6/12 | 2,091 | 20.9 | 70 | 636 |
| 7/12 | 2,165 | 21.7 | 72 | 636 |
| 8/12 | 2,248 | 22.5 | 75 | 636 |
| 9/12 | 2,338 | 23.4 | 78 | 636 |
| 10/12 | 2,434 | 24.3 | 81 | 636 |
| 12/12 | 2,645 | 26.5 | 88 | 636 |
*3/square + 10% waste. Footprint 1,700 + 10% overhang = 1,870 sq ft.
Two stories instead?
A two-story 1,700 sq ft house sits on about 850 sq ft, so its roof is 9.9–11.2 squares.
Early budget · architectural shingles · our provisional setting
$9,900 – $22,500
1,700 sq ft ranch, 19.7–22.5 squares, Ohio and Michigan. Two-story: $5,000–$11,200.
Winter details for 1,700 sq ft in Ohio or Michigan
Attic vents. With about 1,700 sq ft of attic floor, the IRC R806.2 ratios work out to 1,632 sq in of net free vent area at 1/150 or 816 sq in at 1/300, about 408–816 sq in of it at the soffits. That balance keeps the deck cold and cuts ice dams.
Eave ice barrier. Assuming a rectangle 1.5 times as long as wide, a 1,700 sq ft ranch has about 106 ft of eaves. At 6/12 with a 12-inch overhang that is 2 courses (40.2 in up the slope), roughly 636 sq ft of membrane where your local code calls for it.
Frequently asked questions
How many squares is a 1,700 sq ft ranch roof?
About 19.7 to 22.5 squares between 4/12 and 8/12; at 6/12 it is 20.9 squares (2,091 sq ft).
How many bundles for a 1,700 sq ft one-story house?
66–75 bundles at 3 per square with 10% waste; 70 at 6/12.
What about a two-story 1,700 sq ft house?
Its footprint is about 850 sq ft, so the roof is roughly 9.9–11.2 squares.
Early budget for a 1,700 sq ft ranch roof?
$9,900–$22,500 for architectural shingles using our provisional $500–$1,000 per square setting, not a quote.