Roof size reference
Roof size for a 1,300 sq ft house
One story: about 15.1–17.2 squares (1,507–1,719 sq ft of roof) at 4/12–8/12. Two stories: about 7.5–8.6 squares over a 650 sq ft footprint.
1,300 sq ft ranch, by pitch
| Pitch | Roof sq ft | Squares | Bundles* | Ice barrier sq ft |
|---|---|---|---|---|
| 4/12 | 1,507 | 15.1 | 50 | 556 |
| 5/12 | 1,549 | 15.5 | 52 | 556 |
| 6/12 | 1,599 | 16 | 53 | 556 |
| 7/12 | 1,656 | 16.6 | 55 | 556 |
| 8/12 | 1,719 | 17.2 | 57 | 556 |
| 9/12 | 1,788 | 17.9 | 60 | 556 |
| 10/12 | 1,861 | 18.6 | 62 | 556 |
| 12/12 | 2,022 | 20.2 | 67 | 556 |
*3/square + 10% waste. Footprint 1,300 + 10% overhang = 1,430 sq ft.
Two stories instead?
A two-story 1,300 sq ft house sits on about 650 sq ft, so its roof is 7.5–8.6 squares.
Early budget · architectural shingles · our provisional setting
$7,600 – $17,200
1,300 sq ft ranch, 15.1–17.2 squares, Ohio and Michigan. Two-story: $3,800–$8,600.
Winter details for 1,300 sq ft in Ohio or Michigan
Attic vents. With about 1,300 sq ft of attic floor, the IRC R806.2 ratios work out to 1,248 sq in of net free vent area at 1/150 or 624 sq in at 1/300, about 312–624 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 1,300 sq ft ranch has about 93 ft of eaves. At 6/12 with a 12-inch overhang that is 2 courses (40.2 in up the slope), roughly 556 sq ft of membrane where your local code calls for it.
Frequently asked questions
How many squares is a 1,300 sq ft ranch roof?
About 15.1 to 17.2 squares between 4/12 and 8/12; at 6/12 it is 16 squares (1,599 sq ft).
How many bundles for a 1,300 sq ft one-story house?
50–57 bundles at 3 per square with 10% waste; 53 at 6/12.
What about a two-story 1,300 sq ft house?
Its footprint is about 650 sq ft, so the roof is roughly 7.5–8.6 squares.
Early budget for a 1,300 sq ft ranch roof?
$7,600–$17,200 for architectural shingles using our provisional $500–$1,000 per square setting, not a quote.