I have a solid bar in my closet, I've tested my weight on it many times now and it seems to hold pretty well every time. Doesn't seem to bend, bow or show any signs that it wants to come down. However, because I don't want anything to go wrong or fail when I manage to get it right (to the point I fall unconscious and beyond) I got some solid wood planks and cut them to the height of the bar so it can give it additional support just in case. Now it feels super secure. At the moment I'm on the fence between using my closet or just using the door - the reason being the bar in my closet is about shoulder length to me (I'm 6ft/182cm) so I would have to start kneeling almost. If I use the door I can stand. Not sure yet but I intend to attempt within the next few hours