You need 18 squares, which is 54 bundles.
21
16-22 depending on the brand.
Either 25 sq ft if is is a 4 bundle per square shingle or 33.3 sq ft if it is 3 bundle per square shingle. A square is equal to 100 sq ft.
26 shingles in a bundle of three tab asphalt shingles
Shingles vary in dimensions, and sometimes there are specific bundles of shingles made for the sole purpose of ridge coverage. If you are using the house shingles for ridge, take the length of ridge to be covered, divided by the exposure of the shingle to determine the number of ridge pieces needed. Normally you will get three pieces out of one full shingle. Once you determine the number of full shingles, find out how many shingles are in a bundle and purchase the smallest bundle of shingles necessary to complete the job.
30 by 40 = 1200 sq.ft. divide by 10 = 12 square 3tab and arch shingles are 3 bundle per square 12 sq. x 3 bundles = 36 bundles 3tab = 26 shingle per bundle arch = 22 shingle per bundle 36 bundle x 26 = 936 3tab shingles 36 bundle x 22 = 792 arch shingles =)
AnswerI'm looking for the exact answer, but I believe it's 26. There are usually 3 bundles in a square (100 square feet) so this would work out right. Of course it would also depend on what kind of shingle it is.-------------------------Actually it is 22
Depending on which manufacturer of starter shingles you prefer, you will get 100 linear feet, give or take a couple of feet for some brands. If using 3-tab shingles as a starter shingle, you will get roughly 78 linear feet per bundle.
You don't shingle with pancakes.
With a 'three tab' shingle, you should (will?) have 33 sq. ft. per bundle, so you will need 10-11bundles.If a 'designer' shingle is used, you should (will?) have 25 sq. ft. per bundle, so you will need 13-14 bundles.You may need an extra bundle or two, depending on the shape of your roof & how many full size shingles must be cut to fit.If you have to shingle the ridge of the roof, you should get 21 Lft. per bundleCall or visit your local building supply store, ask for their 'Service Counter' or Project Desk' to verify the shingles ( colour, style, size & size per bundle ) that they have in stock or have access to.Styles & sizes vary by geographic location.
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!
Usually there are 10 in a bundle.