Made a removable paint booth using 1.25 inch PVC conduit to support a 3.5 mil plastic sheet. Used one conduit to support the plastic from overhead in shop, a second conduit to roll up the sheet when not in use. Also the second conduit holds the sheet down nicely on the floor when the sides are down. I'll make a filler plate for the door with a cut out for my shop cool to complete the booth with exhaust.