The room plan is based on an 8? module comprised of four 4? panels. With the relief this gives an overall wall to wall (and ceiling to floor, as it is a cube) dimension of 8?8?. The cube is repeated twice in each room. Two half cubes make up the bathroom (shown at the top of the plan). Notice that the radiant heating coils have been broken down into the 4? module in order to specifically heat or cool the area of the room where the occupants are.