My condo features unfinshed walls and several half walls. I'd like to add a door to my bedroom to keep out pets and add some privacy. I have seen some condos that half special barn or warehouse doors the roll on a large exterior wheel/roller. I cannot use a hanging door on a track nor a pocket door. I'd like the door to work on a series of rollers on each side of the threshold. I want the door to roll from right to left. Very similar to sliding doors yet I want rollers and no installed track. Hard to explain, yet I've seen it once, but I have found very little on the net concerning where to get the door and specialty hardware. Surely some sort of specialty interior design company makes this product. Any website, contact info is greatly appreciated. Thanks!!