Measure up from the ground on one side up and over to the ground on the other side, then add 2 feet to that measurement, let’s say it measures 29 feet, then you add 2 feet to that measurement, your poly must be at least 31 feet wide.

Next measure the length of your hoop house and add 2 feet to that measurement, ground to ground it’s 40 feet long so adding 2 feet to that your poly covering must be at least 42 feet long.

To cover the top of your hoop house you will require at least a 31’x42’ sheet of poly.

For the ends measure the width of the hoop house and add 2 feet to that. Then measure the height in the center and add 2 feet to that. these numbers are the minimum required to cover each end. 

Most of our hoop designs can be covered either 6 mil, 24 ft. wide or 32 ft. wide poly, both of which we stock in long rolls and stock many different precut  lengths of both these widths. This is standard 6 mil Nursery grade UV resistant poly

We also stock 4 mil in 12 foot widths for low tunnel applications