I started with a small paint booth when I was working in my garage at home. Once I moved to the hangar, I built a 32' L X 16' W X 12' H paint booth out of lumber. This new booth works great.
This is the paint booth that I had in my detached garage at my house. Was very cramped but did the job for the small parts.
Paint booth built in the hangar. Nice to have so much space.