Shoji screens gave Japanese interiors flexibility, essentially they were sliding doors
Modern sliding doors are technically more sophisticated, no longer requiring tracks on the floor
The FD-50 in a three door telescopic configuration can close a gap of 3.36m and all with soft closing
A more traditional feel is evoked here using the heavy duty FD-80 but still the floor is clear.
The ALT-F a folding pocket door system, still no floor track.