How Much Plywood For A Roof

The square footage of a hip roof area is identical to the square footage of a gable roof of the same measurements.

How much plywood for a roof.

This basically calculates the number of sheets needed for a gable roof. A 4 8 sheet of plywood is 32 ft 2. It will support roof. Add an additional 10 for waste and mistakes.

We also carry pre cut project panels that are available in different sizes that may vary by store. 1 500 32 46 875 sheets. For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it. The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size.

A roof that lays practically flat will have a much heavier load than a steeper roof that allows rain snow and ice to roll right off. 800 32 25 sheets. Estimate the amount of plywood or osb needed for sheathing a roof. If your roof area is 1 600 square.

In this case plywood should be a minimum of 3 8 inch thick. Divide the total roof area by 32 to get the number of sheets you will need to cover the roof. The most common size for plywood sheets is 4 x 8 feet followed by 5 x 5 feet. On my shed my sheathing does not protrude actually how both my house and shed are done is a 1 x 6 house 1 x4 shed fascia is installed to end of rafters then 1 x 1 1 2 is tacked onto the fascia at the top.

So dividing the area of the roof by 32 will give you the number of sheets needed. One sheet 32 ft. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Divide the roof s area by 32 32 is the total area of one sheet of plywood to find this figure.

A 4 8 sheet of plywood is 32 ft 2. This comes out to about 94 sheets of 4 x 8 plywood. For example if your roof is 3 000 square feet divide 3 000 by 32. Divide by the total square footage by the square footage of a sheet of plywood to find the number of sheets required to cover the space.

A typical 4 foot by 8 foot sheet of plywood covers 32 square feet. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. Then i do a metal drip edge to cover it all. However you may need to consider bolstering the plywood thickness for a roof that has a higher load.