This screen was designed to be low cost (under $40 for everything), easy to make, and portable. The entire thing can be broken down and carried in a yoga or bat bag for transportation to different locations.
Whenever possible, I had cuts made when purchasing. This meant one less step at home and in the case of the pvc pipe, it meant I could get the pieces home in my little Toyota.
Step 1: Determine Your Screen Size
The back of our garage is 12' wide and approximately 8' high, so those are the dimensions I started with.