Unlike Amazon Prime, Amazon Business will be free to verified business customers, offering features such as bulk pricing, free two-day shipping on orders worth more than $49, and access to products not available to typical retail consumers.
Roof shingles are sold by both the bundle and by the square. A square of shingles is the quantity needed to cover 100 sq. ft. of roof. Shingles are packaged in paper- or plastic-wrapped bundles designed to be light enough for a person to carry, so heavier shingles require more bundles per square.
Measure the length of a shingle as it lies across the roof. This will help determine how the shingles will lay on the roof width. Most asphalt shingles are 3 feet (91.4 centimeters) in length. If your roof's width is not an even multiple of the shingle's length, you will have a partial piece on one end of each row.1  The bottom row of shingles must hang past the edge of the roof.ost asphalt shingles are 3 feet (91.4 centimeters) in length. If your roof's width is not an even multiple of the shingle's length, you will have a partial piece on one end of each row. 1  The bottom row of shingles must hang past the edge of the roof.