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. The calculator above can handle much of this math. Depending on the pitch additional equipment may also be necessary. A 4 8 sheet of plywood is 32 ft 2.

Area can be found by multiplying the length and width of the space in feet. Measure with a speed square. Muth company roofing recommends that older 3 8 inch plywood roof decks be replaced with 7 16 inch osb oriented strand board when it s time to install new roofing in columbus or other areas of central ohio. A steep roof pitch can add to the cost of installation as it will be more time consuming to work on a steeper pitch.

So dividing the area of the roof by 32 will give you the number of sheets needed. 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. To help your shingles last 50 years you need a sturdy deck.

Divide the total roof area by 32 to get the number of sheets you will need to cover the roof. 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. Estimate the amount of plywood or osb needed for sheathing a roof. 8 inches and you have an 8 in 12 pitch.

A speed square and level can be used to easily find the pitch of a roof. If this distance measures 4 inches you have a 4 in 12 pitch. The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size. The following tools estimate the area of a roof as well as the amount of materials necessary to construct a roof of a given area.

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. 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. One sheet 32 ft this basically calculates the number of sheets needed for a gable roof. The pitch of this roof is 4 8 12.