Online ordering is by the sheet. For example, if you want 10 sheets of polycarbonate that is 4 feet wide by 8 feet long, select the "add to cart" button on the 8' sheet length line under the "Standard 4' width" column. When prompted enter a quantity of 10. The total will be calculated for you based on the price per square foot. (flute or cell openings run in the length direction)

Note: Sheets must be cut from standard size lengths, i.e. 8', 10', 12' and up to 48' long (example in yellow below). You will have to pay for any unused portion leftover, after all sheets are cut. For example, a single 7' sheet must be cut from a standard 8' sheet with one foot of leftover, but two 7' sheets could be cut from a standard 14' sheet with no leftover). Any single sheet less than 8' long (i.e. 4', 5', 6', & 7') must be cut from a standard 8' long sheet and the cost would be for a standard 8' sheet.