Roofing over does present some issues however.
How much plywood for 800 sq ft roof.
This basically calculates the number of sheets needed for a gable roof.
1square of roofing covers 100 square feet of roof a bundle is 1 3 of a square.
Multiply the length of the roof in feet by the width of the roof in feet to find the area of the roof in square feet.
Average costs and comments from costhelper s team of professional journalists and community of users.
Roofing cost per square foot.
Thus at the mid point of the above price range you can expect to pay about 4 50 per sq.
Single story ranch house can range in price from 8 500 to 16 500 fully installed.
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.
Roofing over costs around 2 to 3 per square foot as opposed to the average full replacement cost of 4 50 so roofing over a 1 500 square foot roof may only cost 3 000 to 4 500.
When calculating roofing costs per square asphalt shingles run from 350 and 500 per square metal or tin roofs costs 600 to 1 200 per square and concrete or clay costs between 1 200 and 1 800 per.
800 32 25 sheets.
Add at least six feet for waste.
To install depending on the type of shingle and project specifics variables.
No calculator can tell how much waste will be on each run plywood.
Get the square footage of roof and divide it by 100 and it will give the number of squares you need and for every decimal number over 3 buy a bundle to achieve the amount of material.
The square footage of a hip roof area is identical to the square footage of a gable roof of the same measurements.
According to the united states census the average roof is 17 squares or about 1 700 square feet.
This price range.
How much a new roof should cost.
A new asphalt shingles roof for a typical 2 000 sq.
Remember the longer the cut the more the waste.
Do it yourself materials to install an asphalt shingle roof on an average one story ranch style home with a gently sloping roof of 1 700 2 100 square feet can run 680 3 700 depending on the quality of the materials.
One sheet 32 ft.
For example if the area to be covered in plywood is 800 ft 2 then 25 sheets of plywood will be needed to cover it.
Across the us a typical architectural asphalt shingle roof will cost between 4 00 and 7 00 per sq.
For a shape like a circle pentagon hexagon or octagon find 25 of the width and measure the length at that point.
The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size.
A 4 8 sheet of plywood is 32 ft 2.
Then add at least four feet for waste.
Or 450 per square to replace an asphalt shingle roof.
Find the area of a roof.
