As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.
How big is a bundle of roofing shingles.
In other words if you buy 3 bundles of shingles this will cover one square which is 100 sq ft of area.
To find the amount of shingles you will need multiply the number of squares by three.
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Typically it takes three bundles of standard sized standard weight shingles to cover 100 square feet of roof surface.
These are still considered standard asphalt shingle dimensions.
Once upon a time traditional strip or 3 tab shingle dimensions as well as asphalt shingle dimensions measured 12 inches wide by 36 inches long.
The most common is to have three bundles of shingles for a square of roof area.
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Each square will need three bundles of shingles to cover it.
One bundle of shingles covers approximately 33 square feet of roof depending on the size and weight of the shingles.
The average bundle of shingles covers 33 3 ft 2 so three bundles of shingles are needed per square.
Iko leading edge plus tm shingles are the ideal starter strip and a bundle covers 123 linear feet 118 1 linear feet for iko leading edge plus sold in the northwest u s.
However shingles are packaged in a way that they are light enough for the average person to carry around.
There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.
Iko was among the first roofing material manufacturers to introduce the metric size roofing shingle defined as being 13 1 4 inches long by 39 3 8 inches wide.
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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.
Each bundle is a wrapped package of shingles with such a weight as to be lifted easily by a person.
This same measurement is used to calculate the amount of starter strip shingles you ll need.