I would get 120 so you'll have enough for ridge cap and starter strip.
3,100
standard shingles 11 bundles heavy wt 15 bundles
1 square is 100 square feet. Standard grade shingles, 3 bundles in a square. 1 bundle can be $16 to $25 depending on brand and the store. Ten bundles would be about 330 square feet.
20 squares or 60 bundles
depends on if you go with a 25 yr or a 30 yr shingle. For a 25 yr shingle you are looking at 44 bundles plus 10% for ridge cap comes to 49.5 bundles. For a 30 yr shingle you are lloking at about 51 bundles plus 10 % comes to 56 bundles there abouts.
One bundle of shingle covers about 33 square feet of roof hence around 850 bundles of shingles will be needed for 28000 square feet roof!
It says on the side of the box of shingles how many square foot it willl cover so figure that out and multiple tilll.you hit two hundred say each box did ten square foot you would nned twenty boxes,
The estimated cost of building a 3100 square foot glass atrium is $3,862. This estimate can vary according to the location of the build and the contracted company.
Generally there is 1/3 of 1 square per bundle but this varies with style and manufacturer. a square covers 100 square feet of roof so 1 bundle would be roughly 33 square feet.
Roughly 33 square feet. Three bundles make a square ( 100 sq. ft. )
Shingles weigh 2lbs per square foot, or 190lbs per 100 square feet, all you now need to know is the carrying capacity of the truck
three bundles of shingles are called a square. they will cover a 10x10 area. so lets say 100 sf. divided by 1300 sf. is thirteen. then you multiply 13 x 3 which is 39. so you will need 39 bundles of shingles. make sure you get them from somewhere they can be returned for money in case you have too many. mugetsu31