Nice design and work. It is perfect timing for me, because I am building a clamp rack today! I did not know exactly what I wanted in the way of a design, only that I was using a French cleat. Thanks for the post and the idea.
Nice Rack. As soon as I clean out some space in my small 20 X 40' shop, I do need to build something just like you have. Yea, I know, it's a good size shop, but the wife has nearly 1/2 of it filled with items we need to sell off. My shop is 2 metal roofed tall car ports placed end to end. Only about 6' side walls, and the top 22" is clear plastic to allow light to come in, but it does take away some needed storage space.