Vinyl plank flooring, plenty of choices just like wood base laminate flooring. But 100% vinyl so it is totally waterproof. Expansion and contraction is less than wood laminate, so edge gap in a S&B house is 1/4 inch, probably could be zero in an RV. I've installed several brands, but stay away from the thin ones, 4mm or less, the tongue and groove have limited locking surfaces and might pull apart in a flexing RV. Many wood base laminates assume normal room temps after installation (65 F to 85 F) and may buckle with larger temp swings of an RV.