We just finished ripping out all the very old carpet and replacing with flooring. Wood laminate till we got to the bathroom and in there we used a vinyl laminate. Patched all the old screw and tack holes, painted and then used a foam underlayment. Did not glue or nail down any of the wood laminate flooring, but in the bathroom we used a double sided tape on "TOP" of the underlayment. This just holds the laminate flooring in place and keeps it from sliding around a bit I guess. Did not need to anchor the wood. Took it out this past weekend for a shakedown cruise and with two grandkids running back and forth for 3 days it seemed to be ok.
A few pics to show in progress and finished product.
We did it ourselves and we are still married!
Chuck & Skye