Roof Plywood Estimator

The pitch of this roof is 4 8 12.

Roof plywood estimator.

A 4 8 sheet of plywood is 32 ft 2. Estimate the amount of plywood or osb needed for sheathing a roof. The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size. Depending on the pitch additional equipment may also be necessary.

One sheet 32 ft this basically calculates the number of sheets needed for a gable roof. A speed square and level can be used to easily find the pitch of a roof. The calculator above can handle much of this math. 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.

The house base area is the area of land that the house covers and for more complex shapes can be estimated using the area calculator. 8 inches and you have an 8 in 12 pitch. A typical 4 foot by 8 foot sheet of plywood covers 32 square feet. So dividing the area of the roof by 32 will give you the number of sheets needed.

Measure with a speed square. 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. Divide the total roof area by 32 to get the number of sheets you will need to cover the roof. Area can be found by multiplying the length and width of the space in feet.

If this distance measures 4 inches you have a 4 in 12 pitch. 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. Find the square footage of each space and add together to find the total square footage needed. 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.

For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it. 1 500 32 46 875 sheets. A steep roof pitch can add to the cost of installation as it will be more time consuming to work on a steeper pitch. To help your shingles last 50 years you need a sturdy deck.