One job

It’s a structural shelf. It’s supporting the 20 floors above, and the roof.

There had to be a good reason to be fitted there.

well theres these things called hanger so you see you can put clothes on the hangers and then hang the hangers on that shelf BSHEOOOWWWWWW mind blown

Very good, yes you could.

Where else are you gonna put your ceiling?

next to the floor, like a sane person.