Owens corning offers a metric square of shingles.
How many roof shingles in a bundle.
It is common to use 3 bundles to a square of shingles.
There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.
Asphalt shingles range in price from about 25 per bundle for a standard 3 tab style to around 50 75 or more for an upgraded architectural style.
The shingle bundles will be plastic or paper wrapped bundles that are made to be light enough for a single person to carry.
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.
With that as background you are now ready to estimate how many shingles you will purchase for your roof project.
Shingles are packaged in paper or plastic wrapped bundles designed to be light enough for a person to carry so heavier shingles require more bundles per square.
Each shingle is 13 1 4 inches by 39 3 4 inches and the square covers 99 98 square feet using 65 shingles.
The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.
This means that if you are going to be using heavier shingles you will need to have more bundles to cover each square foot.
With the metric square each bundle contains 22 shingles.
For example if brand a has 20 shingles in a package but brand b has 26 it could be that the brand a bundle covers more area.
Roof shingles are sold by both the bundle and by the square.