IKEA Insert with Door, White 626.23265.2630
Brand: IKEA

Standing or lying, against the wall or to divide the room – KALLAX series is eager to please and will adapt to your taste, space, budget and needs. Fine tune with drawers, shelves, boxes and inserts. Size 13x13 "

The insert looks nice in a room divider as the back has also been finished.
Easy to assemble.