Roof Plywood Needed

You need to measure your roof using a tape measure.

Roof plywood needed.

So dividing the area of the roof by 32 will give you the number of sheets needed. A 4 8 sheet of plywood is 32 ft 2. How many square feet are there in a 4 8 sheet of plywood. In this case a 4 8 sheet of plywood is 32 square feet.

For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it. Unfortunately because the roof sheathing isn t normally visible damage can go unnoticed by homeowners. 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. The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size.

You just need to multiply the length by the width. It will be a good idea to get an extra few sheets of plywood when ordering to allow for waste and off cuts. Knowing this number can help you determine how many sheets of plywood you need for your roof. Rafters that are slightly farther apart might require inch or 5 8 inch thick plywood.

Many homes have rafters that are even wider at 24 inches apart and will require a thicker sheet of plywood. A standard sheet of plywood is 4 8. For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended. Gable roof sheathing calculator imperial estimate the amount of plywood or osb needed for sheathing a roof.

This basically calculates the number of sheets needed for a gable roof. One sheet 32 ft. When this is the case experts recommend a 5 8 inch thick sheet. It will support roof.

The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. Even though it isn t visible it is very important to the structure of your home.