You are going to need 4 bundles. 3 bundles equals a square and a square equals 100 square feet.
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That depends on the size of the shingles. ************************************************************** Size of shingles makes no difference. Shingles are sold by the bundle and the amount of bundles per square depends on the weight of the shingles. So you could have 3 bundles, 4 bundles or 5 bundles per square but they still add up to a (100 sq ft) square. The only difference would be if you are dealing with metric shingles, which is not going to make a big difference in the area covered. A square of shingles covers 100 sq ft. So for a 672 sq ft roof you will need 7 squares. Dave
1 square of roofing shingles is 3 bundles of shingles equaling 63 shingles per square.
100 sq ft = 1 square.
When talking about the area of a roof, remember that it is not the same as the square footage of the structure. For example a 20 x 30' building with a 12" overhang and a 4/12 pitch will have 736 sq ft of roof vs only 600 sq ft of slab. One square of shingles covers 100 square feet. 15 year shingles come 3 bundles to a square. 25 year come 4 bundles to a square.
When talking about the area of a roof, remember that it is not the same as the square footage of the structure. For example a 20 x 30' building with a 12" overhang and a 4/12 pitch will have 736 sq ft of roof vs only 600 sq ft of slab. One square of shingles covers 100 square feet. 15 year shingles come 3 bundles to a square. 25 year come 4 bundles to a square.