Hi, it seems you are trying to figure out how to install a pull up bar without a door frame. We have a few solutions for you in such a scenario. You can go with a wall mounted or free standing pull up bar. They both have their pros and cons. You can see the entire series of pull up bars reviewed here at: https://www.suspensionrev.com/chin-up-bar-choices/
Pull Up Bars without Door Frames
It all depends on how much $$ you are willing to part with. If you have an open budget, we would recommend a ceiling mounted or free standing bar. If you are short on budget, we would recommend you take a look at the wall mounted version, or suspension trainers with a wall hook.