I’m used to working from big benches, not massive ones, just long ones and ones that are 3-feet across. In my beginnings at school they were silly little things but when I went to work, on the first day, I was given the corner of a long bench with a very old Record vise. Of course for most a large bench is a luxury of space and size combined and one I can’t really afford for a few reasons. Actually, not many people can do that either. The fact is that every void gets filled, in my experience, most often with non essentials and working my bench sizing out for practical efficiency has been made simple by my not having a big bench. I rely now on the two moving benches I made a couple of years back. These two make my worklife really work effectively. I can add one to the length if needed and the other one can go on the opposite side for extra width. When I laid the floor joists down on top of a slate bed in the workshop I built it for solidity and that was mainly for smooth flowing camera work. It’s very rock solid. I also beefed up under where the bench area would be and I am glad I did because even with the extra it still bounces slightly when filming. Of course the camera exaggerates everything. Anyway, the carts hold tool boxes and tools, projects worked on or in progress. But the extensions they provide are really handy for larger projects and because they’re identical heights to one another they also sit side by side or end to end for wider or longer issues. The omni-directional wheels work great and are lockable too. I also like them for photography work and that’s mostly why they’re painted the colour they are. See the clamp holder too. That makes for quick access and good storage too. That’s the reason for the drop down desk as well. I can place the auxiliary workbench tight to the well if or as needed.
Whereas it is true that the two auxiliary benches don’t take up less space than a large single bench, they offer me versatility. I move them in and out to task and the diversely different tasks I encounter in the everyday life of a workman like me.