Each square will need three bundles of shingles to cover it.
How many roofing bundles in a square.
A roof square is equal to 100 square feet so each bundle covers roughly 33 1 3 square feet.
This roof shingle calculator requires four basic inputs.
Four bundles to a square.
One square equals 100 square feet or a 10 x 10 area.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
The square footage of a roof is normally measured in squares of 100 feet.
Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material.
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.
Therefore a 40 square roof would require approximately 120 bundles of shingles.
It typically takes three bundles of standard three tab asphalt shingles to cover one square on a roof.
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.
Roof length measured in feet roof width measured in feet roof pitch.
So most popular shingles are sold such that three bundles are needed to cover one square of roof area.
Since transportation is a major cost factor expect prices to vary by location.
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There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.
A typical bundle of shingles weighs about 75 pounds while some premium products can weigh over 100 pounds per bundle so consider delivery of materials.
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.
One bundle covers 33 3 sq.
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 most common roofing materials used in the united states include shingles membrane roofing and ceramic tile all of which have different life spans.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
Shingle roofs typically have a life span of 15 30 years while membrane roofs usually last 5 15 years.
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.
But be careful not all shingle brands are packaged three bundles to a square.
With that as background you are now ready to estimate how many shingles you will purchase for your roof project.
Normal architectural shingles are approximately 3 bundles per square.