from >http://www.angelfire.com/ny5/shenandoah/Grunt/Bodyweight.htmlSo I've been looking for a chin up bar that "grabs" the door frame with your body weight, but I've only found one that extends to my 36" door frames and it is 90 motherfucking dollars. So I'm thinking about building it myself (pic related). Before I do that, though, does anybody happen to know of one of these buggers that will fit a 36" door frame and 6" thick walls?Much appreciated.