Twenty seven strips equal a bundle generally speaking and roughly three to four compose a square.
Roofing bundle square.
10 feet x 10 feet 100 square feet or 1 roofing square 5 feet x 20 feet 100 square feet or 1 roofing square.
The term roofing square and roof pitch are the most commonly used terms in the roofing industry.
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.
1 roofing square 100 square feet.
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.
Normal architectural shingles are approximately 3 bundles per square.
But be careful not all shingle brands are packaged three bundles to a square.
So most popular shingles are sold such that three bundles are needed to cover one square of roof area.
Of your roof area which is close to the sheet coverage area of 32 sq.
If you are using three bundles to a square calculating bundle numbers is simple.
Each of your bundles can cover 33 3 sq.
Four bundles to a square.
This would be 87.
Therefore order one bundle for every sheet of roof sheathing you have.
Shingles are packaged in bundles that include a number of strips of roofing.
Since transportation is a major cost factor expect prices to vary by location.