Our initial barn door post was viewed 8000+ times so I figured I would focus in quickly and show you how many options are out there for the tracks themselves. The barn door track has been around 100+ years and has recently exploded in popularity. There are many different styles, colours and sizes now readily available, many offered strictly online only.
Take a look at a few cool track styles I found online. Simply searching "barn door track hardware" will yield a few hundred different examples of tracks that are out there and available for purchase.