How Many Sheets Of Plywood Do I Need For Roof

For example if your roof is 3 000 square feet divide 3 000 by 32.

How many sheets of plywood do i need for roof.

800 32 25 sheets. The square footage of a hip roof area is identical to the square footage of a gable roof of the same measurements. Estimate the amount of plywood or osb needed for sheathing a roof. 1 500 32 46 875 sheets.

Divide the total roof area by 32 to get the number of sheets you will need to cover the roof. A 4 8 sheet of plywood is 32 ft 2. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. So dividing the area of the roof by 32 will give you the number of sheets needed.

This basically calculates the number of sheets needed for a gable roof. The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. A typical 4 foot by 8 foot sheet of plywood covers 32 square feet.

A 4 8 sheet of plywood is 32 ft 2. Divide the roof s area by 32 32 is the total area of one sheet of plywood to find this figure. It will support roof. 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.

For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it. If your roof area is 1 600 square. This comes out to about 94 sheets of 4 x 8 plywood. Add an additional 10 for waste and mistakes.