I intend to use it to to 'winter-garden' lettuce and other salad things. (I get sick easily on the store stuff with all the chemicals ) and to start herbs in the late winter that I can sell in the spring time. It will be a hoop type structure using flexible pvc and heavy plastic. I plan on at least one roof vent, and a door at the 6' end. I figure it will have about 72' of usable shelf space with a 3' isle, and room underneath the bottom shelf for potting soil and such.
Now I want to ask, if any of you have ever made your own green-house, and can you give me some pointers? I would appreciate all the helpful suggestions you would care to send my way.