I built my greenhouse about 7 years ago using TUFTEX PolyCarb Clear panels, and it has turned out to be one of the best projects I have ever done. I love the greenhouse.
TUFTEX PolyCarb panels are a user-friendly building material. I bought mine at the local Lowe’s store. The TUFTEX panels are easy to work with because they are light weight, flexible, and easy to cut to size.