Roof size reference

Roof size for a 4,000 sq ft house

One story: about 46.4–52.9 squares (4,638–5,288 sq ft of roof) at 4/12–8/12. Two stories: about 23.2–26.4 squares over a 2,000 sq ft footprint.

4,000 sq ft ranch, by pitch

Pitch	Roof sq ft	Squares	Bundles*	Ice barrier sq ft
4/12	4,638	46.4	154	975
5/12	4,767	47.7	158	975
6/12	4,919	49.2	163	975
7/12	5,094	50.9	169	975
8/12	5,288	52.9	175	975
9/12	5,500	55	182	975
10/12	5,728	57.3	190	975
12/12	6,223	62.2	206	975

*3/square + 10% waste. Footprint 4,000 + 10% overhang = 4,400 sq ft.

Two stories instead?

A two-story 4,000 sq ft house sits on about 2,000 sq ft, so its roof is 23.2–26.4 squares. That matches a 2,000 sq ft ranch.

Early budget · architectural shingles · our provisional setting

$23,200 – $52,900

4,000 sq ft ranch, 46.4–52.9 squares, Ohio and Michigan. Two-story: $11,600–$26,400.

Get your own range

Winter details for 4,000 sq ft in Ohio or Michigan

Attic vents. With about 4,000 sq ft of attic floor, the IRC R806.2 ratios work out to 3,840 sq in of net free vent area at 1/150 or 1,920 sq in at 1/300, about 960–1,920 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 4,000 sq ft ranch has about 162 ft of eaves. At 6/12 with a 12-inch overhang that is 2 courses (40.2 in up the slope), roughly 975 sq ft of membrane where your local code calls for it.

Frequently asked questions

How many squares is a 4,000 sq ft ranch roof?

About 46.4 to 52.9 squares between 4/12 and 8/12; at 6/12 it is 49.2 squares (4,919 sq ft).

How many bundles for a 4,000 sq ft one-story house?

154–175 bundles at 3 per square with 10% waste; 163 at 6/12.

What about a two-story 4,000 sq ft house?

Its footprint is about 2,000 sq ft, so the roof is roughly 23.2–26.4 squares.

Early budget for a 4,000 sq ft ranch roof?

$23,200–$52,900 for architectural shingles using our provisional $500–$1,000 per square setting, not a quote.