Or 450 per square to replace an asphalt shingle roof.
How much plywood for 800 sq ft roof.
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.
No calculator can tell how much waste will be on each run plywood.
A new asphalt shingles roof for a typical 2 000 sq.
A 4 8 sheet of plywood is 32 ft 2.
Roofing cost per square foot.
800 32 25 sheets.
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.
This price range.
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.
Roofing over does present some issues however.
To install depending on the type of shingle and project specifics variables.
According to the united states census the average roof is 17 squares or about 1 700 square feet.
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.
The calculation is based on that the plywood or osb oriented strand board sheets are of a 4 x 8 size.
Then add at least four feet for waste.
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.
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.
Remember the longer the cut the more the waste.
That said on average most contractors will charge between 3 50 and 5 50 per square foot or 350 to 550 per square 100 sq ft to install or replace an asphalt shingle roof on a typical house.
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.
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.
How much a new roof should cost.
One sheet 32 ft.
Add at least six feet for waste.
To find the amount of plywood needed to cover a roof start by finding the area of the roof.
This basically calculates the number of sheets needed for a gable roof.
Single story ranch house can range in price from 8 500 to 16 500 fully installed.
Find the area of a roof.
Average costs and comments from costhelper s team of professional journalists and community of users.
Once the area is known divide by the area of a 4 8 sheet to find how much sheathing is needed.
