A flooring assembly comprising a plurality of flooring units each unit comprising a first stability core layer having a top surface, a bottom surface and a plurality of edge surfaces, at least two of the edge surfaces having an interlocking mechanism for attachment to the edge surfaces of the first stability core of adjacent flooring units; a sound attenuating acoustic layer attached to the top surface of the first stability core layer; a second stability core layer attached to the top surface of the acoustic layer and having a top surface, a bottom surface and a plurality of edge surfaces, at least two of the edge surfaces having an interlocking mechanism for attachment to the edge surfaces of the second stability core of adjacent flooring units; and a finish layer attached to the top surface of the second stability core layer, wherein (1) each of the layers is polygonal, and the assembly of flooring units is attachable to a surface of a structure.