Last year I built a 4'x8' temporary greenhouse in one side of our garage, but the only pictures I had was the finished structure. I was asked how the frame was built, and though I explained what materials I used, I had no pictures. This year I have re-built that greenhouse and increased it to 4.5'x9.5'. That's the maximum size because I have a drop-down ladder at one end and a freezer at the other end.

I took pictures of the frame which uses 2x4's as the base and 2x2's as the vertical and horizontal frame. Everything is screwed together for easier take-down in the spring. Though I haven't yet wrapped the structure in solar blanket material, I am showing what the finished greenhouse looked like last year. Notice that there is a large window facing west at one end and when the garage door is open, there will be a lot of light coming through the translucent solar blanket at the other end. The structure is completely enclosed with the blanket material and I have used Velcro strips so that I can open the end in front of the window. This solar blanket is so efficient I only had to use a very small electric heater inside and I set it at the lowest wattage possible. It seldom came on even though we had numerous days in the teens and several dozen days below freezing. The garage is not heated.