That looks really nice and a very nice write-up. Even a 34u rail set is ~$75 and some lumber would provide for a relatively cheap rack.
Awesome, thanks! I saw the casters on yours, did you go under the posts where you mounted the rail? Or did you mount differently? I'm curious from a weight perspective.Yep. basic construction pine 2x4s and 2x6s are dirt cheap, sand down relatively well, and take stain readily.