How Many Plywood Is A Square Roof Shingles

The hardest part is how you determine the number of bundles it requires you to order to cover all your roof areas.

How many plywood is a square roof shingles.

A 4 8 sheet of plywood is 32 ft 2. One sheet 32 ft. To find the squares divide the overall roof area by 100 and then round up. The result is 240 and this means you would need 240 squares of shingles to cover that roof.

The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size. A typical 4 foot by 8 foot sheet of plywood covers 32 square feet. There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these. Twenty seven strips equal a bundle generally speaking and roughly three to four compose a square.

With that as background you are now ready to estimate how many shingles you will purchase for your roof project. To determine the number of squares on the gable roof above simply divide its total of 24 000 square feet by 100. 1 500 32 46 875 sheets. 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.

Each plywood sheet is 4 x 8 feet or 32 square feet which coincidentally is almost exactly equivalent to the coverage of one bundle of traditional three tab shingles. The square footage of a hip roof area is identical to the square footage of a gable roof of the same measurements. Divide the total roof area by 32 to get the number of sheets you will need to cover the roof. Another rule of thumb that can give you a ballpark estimate of the roof area on newly built roofs is to look at the number of sheets of plywood used for the roof deck.

This basically calculates the number of sheets needed for a gable roof. A square simply refers to a 10 x 10 square of roofing. Roofing contractors estimate projects and materials by the square so it is crucial to find this measurement to accurately estimate the amount of material needed. If it s a re roof project and you have access to the original paperwork from the last shingle installation that may be useful in showing the roof area.

Shingles are packaged in bundles that include a number of strips of roofing. For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it. As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.