roofing squares calculator 21
https://austinroofingcompanyroofindex.clarionvale.com/posts/why-the-austin-roofing-company-roof-calculator-saves-time-and-money-on-your-next-project
You're laying asphalt shingles and need to figure out how many squares of roofing material to order. This roofing squares calculator quickly estimates the number of 100-square-foot squares based on your roof's total area, pitch, and waste factor. Just enter your measurements, and it adjusts for overlapping courses and starter strips. It even accounts for hip and ridge cuts, so you’re not left short halfway up the gable.