When I built a workbench out of plywood and 2×4’s   I designed it to unscrew so that I could move it out of the rental and into our next home.   It took a few hours and a lot of unscrewing, but I was able to transport it to the new house in a single load.

Re-assembly was much faster than the initial build as most of the screw holes lined up perfectly, although I did swap the position of two of the plywood side sheathing pieces based upon where it was going to be put up against a wall. I also chopped off the upper shelf overhang on the left side, and chopped a few inches off the height of the top shelf to accommodate the lower ceilings.

 
You can watch the video of the re-assembly process here: