I cannot find a rollaway type door for a linen closet to be located below stairs that I am building in our home. A traditional pocket door needs equivalent wall space along the same plane adjacent to it for the door to slide into. What about a 2 piece closet door in which each half slides on L shaped tracks where there is no adjacent wall space along the same plane, but there are walls on either side at 90 degrees? The door would operate like the top to a roll-top desk, except instead of up & down, each half would roll to the sides. Is anyone aware of such a door, & where we could get one?