Clamp Rack
Here's a pretty simple clamp rack made out of 2x6's & plywood.
It's pretty versatile, and will accomodate different length clamps easily.
The short 2x6 supports are just screwed to the plywood from the backside.
The two 2x4 side pieces help stabilize the rack and reduce the stress
on the wall. It is not self-standing, and I have it secured to the
wall with lag screws. I used the outside of the 2x4's for storing
c-clamps. Adjust the width and height as needed to suit your needs
and available space.
