Yes & No <g>
It all depends on who your boss is and the climate in which you work <grin>. Take for example, your ". . . when moving aircraft into and out of the hangar". If pressed, I'm sure you could come up with some - or many - procedures for doing only this. Wingwalkers, use of tugs, attachment points, etc. might be a starting point just for aircraft movements.
Other items, like housekeeping, FOD, the hangar's org chart (i.e., who is in charge), all could be added. I realize that what and how much goes into the finished SOP might depend on how obsessed you or your boss is <g>. That's why I'd give anything to see someone else's SOP for a hangar facility before I publish the one I've got to make.
See what I mean? - it all depends <grin>. Can you help me?