I don't have that much. There are about 10 types of stuff, alum rod, alum flat, alum tube, etc, then steel, and then brass. That's about it. Lengths up to 4'.
The shorts live in plastic bins up to about 12" in size, arranged on shelving.
So, I think that narrow shelves on brackets on the wall might do it. I'm a got'a see it guy, so they all have to be visible. I just hate to give up a piece of wall space for stuff you go to once in a while, as compared to tooling that you use every day. I have to see all of my chucks lined up on the rack all of the time. You know, the Albrechts lined up in a row from 1/8" up to 1/2". Love em.
I think if I put all of the metals on plywood shelves stacked up one over the other, that would do it. I will have to add nice wooden edge strips to keep stuff from rolling around on the shelves, and off onto my feet, that will be cool.
When done I'll take a picture and really put you to sleep.