The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size.
How much plywood do i need for my roof.
Divide the total roof area by 32 to get the number of sheets you will need to cover the roof.
For example if your roof is 3 000 square feet divide 3 000 by 32.
Add at least six feet for waste.
Let s say that your roof has a total of 1 500 square feet.
That is dependent on the lay out and where it ends with the plywood.
No calculator can tell how much waste will be on each run plywood.
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.
One sheet 32 ft.
We also carry pre cut project panels that are available in different sizes that may vary by store.
And while nobody likes having to pay to replace a roof the critical and aesthetic function it serves should help ease the pain of spending 8 000 to 20 000 on the work.
800 32 25 sheets.
This comes out to about 94 sheets of 4 x 8 plywood.
For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.
This basically calculates the number of sheets needed for a gable roof.
The square footage of a hip roof area is identical to the square footage of a gable roof of the same measurements.
Add an additional 10 for waste and mistakes.
The number you ll get is the number of sheets that you need.
Estimate the amount of plywood or osb needed for sheathing a roof.
In this case you need 47 sheets rounded off from 46 88.
The roof is arguably the most important component of your house.
Divide the roof s area by 32 32 is the total area of one sheet of plywood to find this figure.
Multiply that by 2 if you have a gable roof and that s the total square footage of your roof.
It will support roof.
A typical 4 foot by 8 foot sheet of plywood covers 32 square feet.
Multiply the width and length of each slope and you should get the square footage of that slope.
For example if your roof is 1 500 ft 2 then it will take 47 sheets of plywood to sheath it.
For a shape like a circle pentagon hexagon or octagon find 25 of the width and measure the length at that point.
A 4 8 sheet of plywood is 32 ft 2.
The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that.
Divide by the total square footage by the square footage of a sheet of plywood to find the number of sheets required to cover the space.
Divide that by 32 the square footage of each 4 8 plywood sheet.
These project panels help eliminate waste cut costs and are easier to transport than full size panels.
After all it keeps water out of the building.
