I have a wall separating a den from the main living area and would like to install a 4-panel set of gliding patio doors and associated transom windows to keep the rooms separate/accessible but capture the light provided from the skylights in the den area. We are looking at installing something like the 12' x 8' Andersen 200 series 4-panel glider. Since this is an interior application, does anyone know of a better or interior-type sliding French door product or are we stuck with exterior grade materials on one side of the door? We just don't have enough room to use swing-in/out French doors.