What I have done is out in the garage is use to screw hooks as you would use for porch swing, two chains, and a piece of galvanized pipe. Screw the hooks through the dry wall into ceiling rafters, and run the pipe through the chain, thus making it removable.
It will take extra effort to keep the pipe from rolling and to keep your body from swinging, but it can be done. I think it has improved my grip and core strength. Cost is < $20. (Sorry, it doesn't answer your question.)
Fishr my friend has one she uses will find out the make as we bought it for her off the net. I tried it and its great, no permanent fixings or anything and takes my weight no worries without causing damage
The door frames and molding in my 110-year old house are thicker than most, so it doesn't fit like the pictures show, but it still works pretty well for the few pull-ups I can do. If you have standard door frames, I think it would work very well.
A little harder than a regular chin up bar because it's harder to hold on to. Will develop nice hand strength!
Better than a chin-up in my opinion.
I also made one a while back made of 6" PVC tubing and skateboard grip tape. I had it suspended from the floor joists with cord. Talk about a forearm burn! Use alot more of the forearms muscles to hang out rather than a regular chinup bar.
Milko, Hope all is well. That is a great bar setup. I love how it gives you room in front to move a bit vs. being up against the wall. I am also amazed at your BF% and overall look. Let me guess....tons of Mop Training!
I was searching for one of these this weekend...did a search and found one for about $27...don't remember the site. I like the idea of the one at Sports authority where you can move it around...