I love lockers- you’re doing a smart thing!
I have 3 x 3 x 8’ white steel lockers made by Janus International, now owned by US Door. Can’t find them online but they make them… open locker, swing door that uses a cylinder lock made by Chateau. One shelf at 6’ creates an ‘attic’ for blanket, bucket, and rarely-used stuff storage. Lockers bolt together for strength and you can fit 6 lockers perfectly in a 12 x 12’ stall with a 6’ aisle between two rows of lockers. They are a PITA to put together, but they are very, very sturdy, good looking, and help insure peace on earth. Big time. Each boarder has that much space ONLY and they all the the same space.
Only problem is you need a locker for each and every stall, and regardless of how people beg, they need to change lockers if they change barns. I have bent this rule and it is a big hassle when you let someone have an extra locker in one area because they like to tack up there, say… but when you need that locker for a new boarder, it’s like asking someone to give up their firstborn. Don’t do it.
You will need to add saddle racks and bridle racks in each locker. I put two saddle racks on the back wall and one bridle rack down each side, total of… 10 bridle hooks I think. I use these: pricey (and freight is ridiculous) but indestructible and saddle racks remove in a moment if boarder only wants one. Mount them high-ish so feed barrels can go underneath on the floor of the locker.
http://www.royalwireequine.com/main-frame-iii-with-4-saddle-racks/
buy 4-saddle racks then cut them in half horizontally to create two saddle racks per locker. Mount them into the wall through the back of the locker.
http://www.royalwireequine.com/bridle-racks/
Cut each 10 hook rack in half so 5 hooks go down each side of the locker, again rather high to create better floor space.
The last thing I do is put a Closetmaid wire basket set on each door.
http://www.amazon.com/Clorox-8002-Wire-Wall-Rack2-Tier/dp/B002P90P86
This thing beautifully holds bottles and brushes. I didn’t want to drill holes in the locker doors so I secured the basket unit by using horizontal PVC pipe that I threaded across the baskets, then the PVC slipped in the rolled steel channel that is the edge of the door. I used small sheet metal screws from the backside of the door through that rolled channel into the PVC.
Look in Pinterest for tack lockers- there are a lot of very nice units. While I think mine were expensive, you can certainly spend more even on very nice wooden lockers, or European saddle caddies, etc. I figure about $500 apiece for mine, less assembly labor. It’s a dad or ranch hand project… I even did some myself but it takes two people because the panels are big, and you might accidentally cut your head off with one until you get the first unit stood up and helping support the next unit. BTW you can get common walls but I didn’t- went for the complete box as it was stronger.
Last thing is the cylinder locks you get from Chateau. They come with three keys, so you ALWAYS keep one for the barn manager. If I had it to do again, I would charge $25 deposit on the lock, because I rarely get both keys back, so then I really need to throw that lock away. At least if you had the $25 deposit you could buy a new lock when the one you gave out becomes worthless because you don’t get both keys back. Seems silly but over time… you spend a lot on locks. Also, the locks self-destruct about 5% of the time. Save the carcasses and Chateau may give you some extras. The cylinders die and you have to drill them out… not often, but it does happen.
I just love mine because they were relatively easy to do and they work beautifully. Boarders like them too- they do amazing things inside of them to arrange all their things… but you have to have a rule just like high school of no permanent holes or damage to the locker. In fact, school locker supplies with magnets like tiny baskets, mirrors, and dry erase boards work great in these tack lockers too.
Good luck!