One square covers 100 square feet, so to cover 1900 square feet of roof you would need 19 squares. However, you also need "starter shingles" and "hip and ridge" shingles, plus you need to have a few extras because of waste from cutting angles.
Starter shingles go around the perimeter of the roof as a bottom layer for the first course of shingles. Hip and ridge shingles go, as you might expect, on the hips and ridges. In order to know for sure the exact quantity you would need for the entire roofing job you have to measure all of these areas.
1.2 squares.
54
54.
about 3 squares or 9 bundes plus one for cuts
A 30x50 roof has 1,500 square feet which is 15 squares. 3 bundles of shingles equals 1 square so you will need about 45 bundles.
A square of shingles covers 100 square feet. So, you need 1732/100=17.32 square of shingles. If you can only buy whole number squares of shingles, you will need 18 squares of shingles to cover 1732 square feet.
3 3/4 squares.
5.85 squares + 15% waste = ~6.75 squares of material needed 1/3 square per bundle of shingles 20 - 21 bundles of shingles (buy 21 and return the extra if necessary - it's i'mportant to have shingles from the same pallet/factory for matching purposes.
Two squares.
1.2 squares.
20 squares or 60 bundles
A 'bundle' is an arbitrary amount - Usually we talk about 'squares' in roofing. One 'square' is 100 square feet
I assume your talking about Roofing? It takes me one box for 20- 25 squares of shingles. (Thats if you put the nails where they go, and dont leave any out)!
Answer: About 44. Average bundle covers 1/3 of a square. 1 square = 100 square feet. More info, See link below.
A bundle of Shingles will cover roughly 33 square feet. A square of Shingles (3 Bundles) will cover 100 square feet.
10
I will assume that you mean 28 x 60 feet which would be 1680 square feet. A square of asphalt shingles is normally 100 square feet of coverage. Therefore, it would require approximately 17 squares of asphalt shingles to cover the specified area.An allowance of 5 to 10 percent should also be made for waste. Additional material will be required to cover ridges, valleys, and other areas special areas.Lowes and Home Depot have a good selection of books of roofing.