Since we have more pasture boarders than stall boarders, if the wash rack is busy or it’s super windy (my washrack is outdoors but covered) the rule is that anyone can cross tie in any empty stall but must leave the horse tied and clean up after themselves. I had one boarder who wanted a crazy amount of shavings in her horses stall (which she bought herself) but wasn’t crazy about extra people tacking in there and using up the shavings. The solution was that we always scraped the shavings to the sides and the back corners so any horse that came in were standing on stall mats just like a regular cross tie area. I really liked the idea and started doing it more. I have little collapsible saddle racks on the front of each stall and I’ve had boarders who were crazy about the idea at first that actually ended up loving it because if they needed to step away for a few minutes (like to use the restroom before they mount up, they could leave their horse crossed in their stall, and close the stall door and know their horse couldn’t break free and run loose around property wearing expensive tack.
Your concern about your horse being ticked off at not being able to eat left over hay is definitely valid. It’s something we come across a lot especially for pasture boarded horses that aren’t used to their own private stash of hay, but to be honest it really hasn’t been a big deal. If there is hay in there, of course they always try to reach for it and want to check the grain bucket for left overs but we don’t let them. For the extra persistent ones, after a sharp tug on the cross tie or two, they get over it. If it’s the boarder’s own stall, they’ll usually just hook on the one cross tie and let them munch on hay while grooming/tacking. I suppose you could also hang the cross ties so the horse faces away from the hay… this could also be the solution if you’re concerned about horses kicking and getting hung up in the tack locker (although with 16ft long stalls I think the horse would have to have some pretty long legs to reach).
Could you PM me the facility info of the ones who have had this set up? I’d love to contact them to get their feed back.