Oak Plywood Floor..2 ft x 8 ft finished before laying in a traditional staggered style. Used the thickness of a quarter for spacing and filled with clear latex caulking. I used finishing nails to secure planks. We have only had these in for a few months and no problems yet. I'm curious to see how it reacts to the changes of seasons.
The Design Chaser: Homes to Inspire | Simple Elegance