Square Feet to Roofing Squares
https://www.bookmarking-online.win/cost-to-shingle-a-roofing-system-calculator-2
For roofings shingled with laminated shingles, multi-cutout roof shingles, as well as various other patterned shingles, you'll have to order hip-and-ridge roof shingles that are produced as buddies to the details