I have a 8x20 foot lean2 redwood greenhouse. I bought it years ago as a kit. The benches have held up well, being redwood. A couple of years ago, several sections of the roof blew of. I was going to repair, but I like it better without a complete roof. In the winter, snow covers the plants. In the summer, rain waters the plants on the side of the greenhouse sans roof. It has a door on each end. In the winter I close both doors. On the center walk, I used rubber mulch, it is much nicer to walk on:).
