Getting the right size for my acrylic table was easy, I just measured it and cut it out. I cut it a little shy of my measuring just to be on the safe side and then I sanded it down to where I needed it. It is just two squares cut out and connected. I did build it too low for my machine, but I just sat my machine on a 1/2" board, drew around it and then cut it out and put it underneath my machine. I then mitered around the edges so my acrylic table would sit down in perfect. Really, it was pretty easy and a heck of alot cheaper than if I wanted to buy one like that. And I already had all the wood left over from the barn so I didn't have to buy anything at all.