A roof square is equal to 100 square feet so each bundle covers roughly 33 1 3 square feet.
How many bundles of roofing ina square.
The square footage of a roof is normally measured in squares of 100 feet.
Shingle coverage for 20 25 and 30 year shingles is 3 bundles per square.
Therefore a 40 square roof would require approximately 120 bundles of shingles.
The hardest part is how you determine the number of bundles it requires you to order to cover all your roof areas.
It typically takes three bundles of standard three tab asphalt shingles to cover one square on a roof.
Find the total square footage of your roof by multiplying the width by the length and then divide that number by 100 and you will get the number of squares you need to cover.
The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.
40 and 50 year shingles are 4 bundles per square.
How many bundles of shingles will you need.
How many bundles of shingles in a square you can t merely go by the number of shingles in a bundle since shingle size and coverage vary from one brand to the next.
Although roofing projects are estimated and sold by the square roofing material is often not sold in 1 square increments.
How many shingles in a square once you have a three bundle pack to cover a square you will have 29 x 12 inches by 36 inch standard sized shingles per bundle.
Each square will need three bundles of shingles to cover it.