Contractors installed this for me, and thank god because it looked very complicated! The doors were too heavy to use the wall mount screws and needed a piece of plywood to reinforce. Additionally, we had to buy 2Pc Smooth Double Wheel Bearing Barn Door Pulley Stop Damper Barn Door Track Stop Ground Guide to guide the doors as the wall isn't completely straight so the doors end up snug together the whole bottom half and do not slide nicely. Why we did a barndoor is because it's a 56" opening, and I wanted the doors to be able to both go to the right of the opening. I bought 2 * 38" doors, and calculated 8" that you can't use for track and purchased the 108" track. It worked perfectly.