PVC pipe. Just drill 1/2-in ... Space the holes to accommodate whatever it is you're hanging. Screw that board to another 1x4 for the back and add 45-degree brackets to keep it from sagging. Assemble ...
These 720 TFX Series water resistant keypads from Storm Interface feature tactile keys with a responsive over centre action. Designed for use in harsh industrial enviroments. Above or below panel ...
Next, screw 1x4 sides and top to the cradle and screw it ... Just screw sections of 4-in.-dia. PVC pipe under your workbench ...