that rack is great!
i've been pondering building something similar and need large pieces of wood for shelves. where did you get the laminated plywood? what diameter threaded rod rod did you use? it looks black. did you paint it or is it black oxide coated? if so, where did you get that?
how did you fasten the top shelf to the rods? did you drill half way through the wood? can the rod can slip in and out, or is the wood threaded?
nice job!