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.
How many square in a bundle of roofing shingles.
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.
Normal architectural shingles are approximately 3 bundles per square.
Each square will need three bundles of shingles to cover it.
But be careful not all shingle brands are packaged three bundles to a square.
Asphalt shingles are typically packaged with this in mind but if a package of shingles covered an entire 100 square foot square it would be too heavy to handle.
Four bundles to a square.
It takes a square of shingles to cover 100 sq.
This would be 87.
You will find roof shingles sold by the bundle and by the square.
A square is 100sq feet if your using some of the heavier roofing most one bundle of shingle covers about 33 square feet of roof hence around 850 bundles of shingles will be needed for 28000 square feetroof.
Since transportation is a major cost factor expect prices to vary by location.
So most popular shingles are sold such that three bundles are needed to cover one square of roof area.
Typically it takes three bundles of standard sized standard weight shingles to cover 100 square feet of roof surface.
Of your new roof.
The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.