I ordered the 6 ml. plastic for my Gonna be a TexasPrepper's Greenhouse from Amazon.Such fun. I would love to have more knowledge (tools!) regarding building.
***”How long, do you think/know, the greenhouse (at the following link) would extend our growing season?”**
Maybe 2 months. It looks really short, height wise, so I am guessing you’re not thinking of tomatoes in it.
Here’s an article about Greenhouse Gardening in Chicago:
Here’s a step by step for the one I’m building..
http://www.youtube.com/watch?v=-DKlXs8iov0
My thought for you is that if you have an outside wall-garage, house, brick wall...You could do something like a half hoop..cattle panel, cut in half..then sitting against the house, or a brick wall, that puts out some heat..Then you could skin the cattle panel with 6 ml plastic, or maybe even hang a bulb that puts out some heat at night in there.
It’d have the height, 6 feet 2 “, but only half the width, and half the price..aobut 75 bucks for the little greenhouse experiment.
I am hoping you can visualize what I’m tryig to describe, instead of a quonset hut shape, it’s be half a quonset hut shape..The place you buy the cattle panel ..like Tractor Supply could probably cut in in half for you..
Once you get your hands on some cattle panels, or even the smaller hog panels, you will think of all kinds of things that you could do with them.
My next project, using hog panels, is going to be a “time out” cage for my Mother in Law when she criticizes my cooking and housekeeping! Just kidding, I don’t have a Mother-in-Law.