I wanted a small hot house close to my veggie plot to extend my season. I could put my tender plants like tomatoes there until after the last spring frost . It's only about 3'X3' and has adjustable shelves. It is used lumber, old windows and the roof ridge is old copper scraps. I have fence ornaments also across the ridge to keep birds from landing on it. There are roof vents and side vent.
The pieces of stained glass was salvaged from a piece of a 100-year-old window that had been trashed. It is decorated with turnings from an old tables, old door knobs and other scraps of hardware ..Just to the left is a potting bench also constructed from lots of odd bits... Works great and cost zip!