Four bundles to a square.
How many bundles of roofing per square.
Normal architectural shingles are approximately 3 bundles per 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.
How many shingles in a square.
A square is equal to 100 square feet and will cost anywhere between 100 and 1 800.
This roof shingle calculator requires four basic inputs.
Specialty shingles such as iko armourshake are heavier and therefore packaged to cover 20 square feet per bundle or five bundles per square.
Felts sqs per roll.
Each square will need three bundles of shingles to cover it.
Once you look at the more substantial three tabbed variety these require four per square and sometimes possibly five to cover the same square.
Bundles of roofing material per square.
The most common type of shingle called a three tab or strip shingle is generally packaged three bundles per square.
There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
The most common you find apply to three tab shingles and take three bundles of shingles for each square.
Most composition shingles are 3 bundles per square most of the 40yr composition shingles are 4 bundles per square some 5 or more wood shakes 5 bundles per square wood shingles 4 bundles per square roofing felt per square roofing felt comes in a wide variety coverage s.
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.
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.
So in the gable roof example above you would need 240 squares of underlayment.
The square footage of a roof is normally measured in squares of 100 feet.
Underlayment usually comes in rolls of 4 squares each.
With that as background you are now ready to estimate how many shingles you will purchase for your roof project.
Read the label carefully as some brands need a bit more than three bundles to cover a square.
But be careful not all shingle brands are packaged three bundles to a square.
This would be 87.
It can also include some of the lighter weight laminated shingles.
Since transportation is a major cost factor expect prices to vary by location.
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.
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.
The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.
Roof length measured in feet roof width measured in feet roof pitch.