The new corner doors feature 165-degree wide angle primary hinges and special pie-cut corner door hinges between the two halves. This allows the doors to operate independently from the rotating shelf unit inside the cabinet while providing full access to the interior space. The old inset corner base cabinet doors were attached to the rotating shelf unit. If the weight of the items on the shelving was not evenly distributed, the shelves could sag enough to cause the doors to drag on the face frame. The new doors eliminated that problem.