Here’s the smallest table in my shop. I built it because I needed to cut small radius with my jigsaw and didn’t want to be cutting into my workbench. There’s not much to it. Four legs, a 4×4 with some pocket holes at the top to attach a small piece of replaceable plywood to. Besides using for cuttig with the jigsaw, I use it when I want to drill a hole through something and I don’t want a hole in my workbench. It also comes in handy for routing smaller pieces useing a template.
And while I have routing on the brain, Here’s a tip: On my workbench I drilled a series of 1/4” holes in a line. And a few holes in a line at a right angle so I can insert 1/4” adjustable shelf pins. I use these so I don’t have to “chase” my board that I’m edge routing. The pins are short enough to allow the routerbit to pass right over them has I rout the board.
I set my jigsaw on it so you could get an idea of the table size.
-- Darrell, making more sawdust than I know what to do with