paint booth reply
I also paint only motorcycles. I built my paint booth out a metal yard shed I bought at sears on sale. It is an 8x10, plenty big enough for m/c tanks, side covers, fenders or a frame. I built the floor out of pressure treated 2x6's for floor joists and used OSB for the floor. I sealed every joint with a latex caulking ( don't use silocone caulkig as you will get plenty of fish eyes in the paint as it slowly vapors off as it cures ) when the building was put together I also sealed it where it was screwed to the floor. I put 2 high velocity fans at one on top of each other to exhaust and made frames to hold 8 20x20 a/c filters in both ends. The none fan end pulls the air thru from the out side and the other 8 filters catch the over spray just in front of the ehaust fans. I will try and post a couple of pics in a day or two. Kind of hard to explain the filter and fan system. I also made the sliding door seals out of garage door seals that go on the bottom of roll ups to keep water out of your garage. I researched paint booths and the experts say you do not want a negative pressure in a paint booth but only a very slight positive pressure. This setup has worked real well for me to have paint jobs come out clean with out dust or dirt specks.