I live in a high-rise that utilizes metal studs. My roommate wants to hang this pull-up bar above a door frame. Is it possible, and via what options, to hang this without a high chance of ripping out drywall?
The door frame itself appears to be painted metal, guessing by the sound it makes when I hit it with my finger nails and looking inside the latch. I am not sure if there exists a wooden header on it, but my stud finder does not seem to indicate anything solid behind the top of the door, except a slugger in the middle. The door frame is flanked by two metal studs as expected.
Here's some options I've considered:
Place two 2x4s behind the bar. Toggle bolt the 2x4s into the studs and drywall, then lag bolt the pull up bar to the 2x4s. This will give some distribution of the weight and give me more points to bolt onto drywall, as well as some horizontal support. Per this question, it sounds like it won't make a major difference if I toggle bolt into the drywall between studs.
Option 1 will hold the bar up (about 33lb), and potentially the weight of my roommate (~120lb, so 155lb altogether). However, it does not seem safe for handling the torque caused by lifting one's self up on a bar that extends ~6 inches from the wall.
Use the 2x4 method in option 1, but also add an exoskeleton to the sides that extends vertically down (basically, two 2x4s going a few feet in each direction vertically. Toggle bolt these 'skeletons' to the studs and mount the outside of the pull-up bar to them, and the middle to the interior 2x4s. This will distribute the torque vertically and give more mounting points.
Option 2 is inspired by this other style of pull-up bar that I think my roommate should have bought instead. Not clear if it would work with just drywall either, though.
Is this workable with some clever mounting technique, or are we SOL?