I present to you the Stud Locker. I recently got a shed and wanted a way to utilize the space between the 16" space between studs to store things like extra boards, siding, fence planks, etc. All you need to get this installed is some glue to join the two pieces via the dowel rods, and a couple #10 Wood Screws. I used 3" long wood screws, but 2.5" and possibly even 2" should work as well. The screws with a smooth area near the head work best, as there will be no contact with threads for the Stud Locker. M5 Screws should work if you're not in an area where US sizes are readily available.

Depending on your deployment you may need to print with ABS/ASA or a higher heat resistant material, my shed gets pretty hot in the summer, so I opted to print with ABS. However, I prototyped with PLA, and it works fine if you are using them in an area that doesn't get crazy hot. I will include print profiles for both PLA and ABS.