I am putting together my steel order for my home made racks. I had another thread going for some ideas (here is a link).
I would still be curious for design ideas. Please post them in the other thread linked above as I'd like to keep this one on topic with the layout and assembly.
The plan right now is to use 3/8" steel tubing. I am working with a supplier right now to detail the specs.
The design I am working on uses minimal bends. For the tops I will have square welded edges and at the structural joints (dropouts and uprights where they attach to the tops) will be reinforced with plate steel so it isn't just the tubes welded together.
Drawings and specs to come...