I'm looking at putting down bamboo flooring in a bedroom. I have experience nailing T and G hardwood flooring. What I want to do is build an 18 inch border of natural vertical (all lined up in one direction), then a 12 inch frame of vertical carbonized (running parallel to all four walls), and then filling the remainder with natural vertical (running the same direction as the outermost material). I figure a router bit for cutting new grooves and some spline material sould get me by the logistical problem created by the geometry of the material and design.

Should I be worried about the right-angled direction of the material for splintering or expansion issues? Any other concerns? As for manufacturers, I am looking a Yanchi from Build Direct.

PS If this message looks familiar to anyone, I wrote it a few days ago, but I didn't believe that it was posted. It must have been posted on another list.