Each plywood sheet is 4 x 8 feet or 32 square feet which coincidentally is almost exactly equivalent to the coverage of one bundle of traditional three tab shingles.
Roof shingle conversion 25 linear feet to square feet.
Using an international foot of exactly 0 3048 meters length.
A square simply refers to a 10 x 10 square of roofing.
100 square feet 1 roofing square 9 290304 cubic meters si unit.
However shingles are packaged in a way that they are light enough for the average person to carry around.
You ve measured your roof and calculated the area in square feet.
For example let s find how many linear feet of hardwood flooring will be needed to cover a 120 sq.
To find the squares divide the overall roof area by 100 and then round up.
Convert the width measurement to feet.
It s easy to convert a measurement in terms of square feet to one in terms of linear feet.
3 12 25 now convert to linear feet.
This is simply 100 square feet of roof.
Length 120 sq.
25 length 480 linear feet.
1 roofing square 9 290304 m 3.
If it s a re roof project and you have access to the original paperwork from the last shingle installation that may be useful in showing the roof area.
When you get to the home improvement store you find out the roofing materials are sold by the linear foot.
Room if the boards are 3 wide.
You re ready to re do your roof and it s time to purchase the materials.
As a rule of thumb there are 3 bundles to a square assuming that you are using three tab strip shingles.