Making 4130 racks is pretty easy, but even for me, with the mass of tools I have, it cost me more money than buying retail. And sadly the same is probably true with wood, though in that case I had all the materials on hand as a result of having built my boat. The flat stock and screws method may not be pretty but it is the sort of thing one can put together from the local hardware store. The reality is for what the postage/gas for 4130 cost, I could have bought one of those Blackburn rip-offs that regularly make it across the country.