It's almost finished. I need a little more material. I ended up making it bigger than originally planned. It's going to hold 48 doors. It's going to make things much easier when finishing!
It's 1/4" cold rolled steel rod. I buy 20' pieces for less than $5! I just drilled holes and tapped them in. I had already cut them when I realized that it would have been easier to cut them to 40" and drill all the way through. LOL
Then I got a 100' roll of 1/4" heat shrink tubing and some caps. It should keep the doors from getting scratched or marked up with the raw steel. Again, I wish I had gotten 3/16 tubing, but the 1/4 works fine.