Roof Plywood Estimator

A typical 4 foot by 8 foot sheet of plywood covers 32 square feet.

Roof plywood estimator.

1 500 32 46 875 sheets. Find the square footage of each space and add together to find the total square footage needed. The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size. One sheet 32 ft this basically calculates the number of sheets needed for a gable roof.

The calculator above can handle much of this math. The pitch of this roof is 4 8 12. So dividing the area of the roof by 32 will give you the number of sheets needed. A steep roof pitch can add to the cost of installation as it will be more time consuming to work on a steeper pitch.

Finding the number of sheets of plywood needed for a floor wall ceiling or cabinet begins with finding the area that needs to be covered. A 4 8 sheet of plywood is 32 ft 2. If your roof area is 1 600 square. For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it.

A speed square and level can be used to easily find the pitch of a roof. To help your shingles last 50 years you need a sturdy deck. Measure with a speed square. If this distance measures 4 inches you have a 4 in 12 pitch.

Divide the total roof area by 32 to get the number of sheets you will need to cover the roof. A complex roof architecture is more time consuming to complete than a simple flat roof due to angles and fitting. Depending on the pitch additional equipment may also be necessary. Estimate the amount of plywood or osb needed for sheathing a roof.

8 inches and you have an 8 in 12 pitch. Area can be found by multiplying the length and width of the space in feet. On a ladder beside the roof place the level a foot or so up the roof hold it level and measure from the 12 inch mark on the level s bottom straight down to the roof. Set the level on the edge of the speed square as shown below then place the heel of the speed square on a rafter or gable edge of the roof.