After finding a nice cheap LCD projector I needed a decent projection screen. Here's how I made mine.
Step 1: The frame and fabric.
I decided to recycle some lightweight PVC I made a banner stand with a few years ago I didn't need anymore. After assessing the parts I had to play with, I decided on a good large size with roughly a 4:3 aspect ratio. The pieces in white were the only ones I needed to buy new. I also wanted it to be able to break into two pieces for when I move, so there is one half shaped like a square, and another shaped like a "C".
As for the screen material, I went down to Johannes fabric and looked around for the brightest, shiniest fabric I could find. Surprisingly it was the back side of some terrible gold pleather.