Product Description: Our Wide Planks are incredibly stable because they are engineered with (2) layers of solid hardwood sandwiching Baltic Birch ply instead of just the one. This helps in preventing cupping and warping by reversing the grain during layup so the two layers want to move towards each other instead of moving both in the same direction; which could cause even more warpage than less. The width of our wide plank series takes advantage of the the whole tree creating a beautiful array of grain patters.