Roof Plywood Needed

For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.

Roof plywood needed.

The square footage of a hip roof area is identical to the square footage of a gable roof of the same measurements. When this is the case experts recommend a 5 8 inch thick sheet. Even though it isn t visible it is very important to the structure of your home. 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. It will be a good idea to get an extra few sheets of plywood when ordering to allow for waste and off cuts. In this case a 4 8 sheet of plywood is 32 square feet. One sheet 32 ft.

The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size. Knowing this number can help you determine how many sheets of plywood you need for your roof. The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Osb and plywood come in thicknesses ranging from 5 16 to 3 4 inch and the thickness needed for a particular roof depends on several factors including rafter spacing expected load and roof.

How many square feet are there in a 4 8 sheet of plywood. Gable roof sheathing calculator imperial estimate the amount of plywood or osb needed for sheathing a roof. A 4 8 sheet of plywood is 32 ft 2. Unfortunately because the roof sheathing isn t normally visible damage can go unnoticed by homeowners.

It will support roof. For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it. You need to measure your roof using a tape measure. A standard sheet of plywood is 4 8.

Sometimes referred to as roof sheathing or a roof deck this plywood acts as a foundation for the layers of underlay and the shingles on your roof and connects the roof to the frame of the house. Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood.