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Not a bad idea Wally. Wood is much more comfortable to stand on. I made some out of 4'x9' ½" OSB and 1"x2" furring strips. Then went to Rural king and bought some 4' wide rubber belt like some people use in horse stalls and laid that down over top of the walk boards. Now I can sweep up any chips that land on it and pick up any parts or tools that fall without having to pick up the walk boards.
I have 9' of this board flooring from the door all the way past the outboard end of my lathe then another 9' joins it from the side and passes between my mill and my work bench with my band saw at the end of it. It's a big L. I can do anything I need to do in there without stepping off the board floor. Saved a few parts and tools from being damaged when they landed on rubber instead of concrete.
There are some good mats commercially available, but are pretty expensive. I use mats that I found at Harbor Freight. They make a world of difference and last a pretty good while. I just replace them when they wear out.