Grant Wilkinson
Tks, JL. I've looked at using anti-stress mats. The problem for me is that my tools do not stay in one place. My shop is small. Everything is on wheels. When I need them, I move them out. When I'm not using them, they are against the wall. I could move a mat to the machine, once I've moved the machine to where I want to use it. I just figured that, if I could do the whole floor, then I don't need to be hauling mats around.

I take what you said about sawdust in the cracks. Tks.

I looked at commercial grade rubber flooring, both in rolls or in interlocking tiles. It's nice stuff, but very pricey.