Space is always a concern but sunlight is necessary, too. So orientation is important. We get sun on my GH in the winter only as it sits under shade trees. But that's okay for my use because I use it in the winter for plant protection. The leaves fall off the trees, the sun changes in the horizon and it gets very warm on a sunny winter day. 
My GH sits on a square deck. But it is not square on the deck. I angled it to get the best sun.« Return to the thread "my new greenhouse"
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