Roof Plywood Estimator

A steep roof pitch can add to the cost of installation as it will be more time consuming to work on a steeper pitch.

Roof plywood estimator.

One sheet 32 ft this basically calculates the number of sheets needed for a gable roof. For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it. 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. 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. Measure with a speed square. A typical 4 foot by 8 foot sheet of plywood covers 32 square feet. 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.

A complex roof architecture is more time consuming to complete than a simple flat roof due to angles and fitting. 8 inches and you have an 8 in 12 pitch. 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.

A speed square and level can be used to easily find the pitch of a roof. Estimate the amount of plywood or osb needed for sheathing a roof. Depending on the pitch additional equipment may also be necessary. 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.

A 4 8 sheet of plywood is 32 ft 2. 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. 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.

Find the square footage of each space and add together to find the total square footage needed. Area can be found by multiplying the length and width of the space in feet. If your roof area is 1 600 square. 1 500 32 46 875 sheets.