The instructions don't exactly match the hardware provided in the kit but we figured it out and feel like it provides a very sturdy support for our custom barn doors.  Took 3-4 hours to install because we needed to purchase a router in order to use the floor guides provided in the kit. I would suggest purchasing a different style of floor guides separately to avoid this hassle, not to mention the guides in the kit are plastic so I'm not sure how strong/durable they actually are.