Brad, do what most people with that type of rack do when they outgrow it: buy your own threaded rod and go to town. Once you find the length of rod that you want to use, you can then adjust the shelves to whatever spacing that you want, add shelves to the existing ones that you already have, etc... Michael Green does sell individual shelves and mounting hardware, etc...
One thing that you might want to make sure of is that you get the same diameter / thread on the new rod as what the original rods were. You can make sure of this by simply taking one of the nuts with you to the local hardware / building supply store and threading it onto the rod. I would also recommend spraying the rods down with some type of lubricant ( WD-40, etc.. ) and let them "drain" overnight before installing them into the rack. This not only makes assembly a lot easier due to the lube, but helps protect the metal from corroding or pitting. Sean
>
One thing that you might want to make sure of is that you get the same diameter / thread on the new rod as what the original rods were. You can make sure of this by simply taking one of the nuts with you to the local hardware / building supply store and threading it onto the rod. I would also recommend spraying the rods down with some type of lubricant ( WD-40, etc.. ) and let them "drain" overnight before installing them into the rack. This not only makes assembly a lot easier due to the lube, but helps protect the metal from corroding or pitting. Sean
>