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.
Number of roof shingles per square.
A typical bundle of three tab shingles has 29 standard sized shingles.
Specialty shingles such as iko armourshake are heavier and therefore packaged to cover 20 square feet per bundle or five bundles per square.
Thicker shingles will be as much as 4 or 5 bundles per square.
However shingles are packaged in a way that they are light enough for the average person to carry around.
Each square will need three bundles of shingles to cover it.
Normal architectural shingles are approximately 3 bundles per square.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
This would be 87.
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.
The hardest part is how you determine the number of bundles it requires you to order to cover all your roof areas.
To find the amount of shingles you will need multiply the number of squares by three.
The most common type of shingles known as strip or three tab shingles are packaged with three bundles per square.
There will also be hip ridge and starter shingles needed.
Shingles are packaged in lightweight bundles intended for easy transport up and down a ladder and across precarious heights.