I either just clamp on the outside, screw it into the waste board, or I have some holes drilled and I can clamp through that. Screwing into the waste board is pretty easy. I use that the most if it isn’t big enough to just clamp on the outside. All depends on the kind of work you will be doing. I would only use those if you are using small stock all the time. Most things I cut hang out of the machine and are easier to just clamp, and the rare occasion I am using something small I just double sided tape it down or screw the edges like tiny clamps.