@Dave I hope you got your greenhouse work done. We had some very spring-like weather today. It is about to turn cold again. I have a question. The box with my greenhouse is stored in the garage for the time being. while I hope to open it soon, I noticed it has a "This Side Up" arrow. Well, you might have seen my garage. It is full to the brim with plants for winter protection. I have to turn the box on it's side to give me room to get to the plants to water them. Do you see the This Side Up-thing as an important thing? I mean, am I putting too much pressure on say, the panels??