I am too cheap to buy the metal rails, or even the plastic ones. So I made my own.
Took some scrap sheet metal, slit it to something like 1.5" wide x whatever length I had.
I used the HF bead roller with the slitting dies. (they don't work well but tin snips worked too).
Then, I used the flange dies and rolled a 1/2" flange just deep enough that the bins hung with the metal screwed to my plywood stand.
Cost was zero as I already had the beadroller and scrap metal...work just as good as the store bought ones...