Originally Posted by PaintedMare
the more bridle hooks the better usually. You can usually hang more than just bridles from them. I would get the big command hooks since it is not your barn. They can be easily removed with no damage . Just make sure to check the weights on them. Plus bonus if the hook at any point get in the way you can easily remove it and place it somewhere else without having to get a screwdriver or hammer.
The problem wth command hooks is that you usually can't hang anything too heavy from them, and if the room isn't climate controlled then I think they are less inclined to stay stuck.
Most barns that I've been around are pretty ok with you adding hooks or nails as you please. At the barn where I was previously the owner was showing me my locker and said "Oh, if you want to add any bridle hooks or nails, go right ahead!". When I opened it I found every hook imaginable in every spot you could imagine! My current barn is just as flexible, but in both of the lockers I've used there have been a multitude of nails that I use for everything- bridles, helmet, half chaps, treat bucket, bits, etc!
Though, it's always best to ask before nailing into someone else's property!