A few weeks ago we had puzzle carpet, now we have puzzle wood flooring. Puzzle Floor™ pieces are made of 5/8" solid northern hardwood which ‘is precision-manufactured...to allow for perfect alignment and fit.” The 13" x 13" squares are available in 13 different colors, and according to the company’s website, installation sounds DIY-able. I just have one question about this sudden influx of puzzle flooring. Why just floor applications? Why not cover a wall with them? I see it now...Puzzle Paneling!