As I've lamented in the past, my shit excuse for a "gym" doesn't even have pull-up bars. I'll be moving soon but in the mean time, I want to get one to throw in my garage so that I'm not stuck only with curls until I get to Asheville. I keep seeing a bunch of "doorway pull-up bars" for $20 or less. I'm 195 pounds, how likely is it that these cheap things are going to hold me? Anybody want to just tell me the diameter of a standard pull-up bar so I can fashion my own from something at home depot? Help is appreciated.