A handy person from So. Cal says:
February 3, 2015
This is the track I have. Sorry I didn't lay a tape on it to help width view. It rolls 3 doors on the 2 tracks which a PIA. I want to either get a 3rd track to lay along side of the...along with a a top rail, or replace with a three track system. What do you think?
Tom from SWISCO responded:
February 5, 2015
Thanks for posting! I'm afraid we do not sell three-rail tracks. The only thing I can suggest is using two normal tracks and simply ignoring the fourth rail. The track in your picture appears similar to our 23-256. Could using two of these work for you?