The wall in our basement wasn't quite straight so I needed to design a custom barn door slide so that it would work properly. I used #8 screws. The angle file has ~1degree angle to accomodate the wall misalignment. The model is inspired from https://www.printables.com/model/435188-barn-door-floor-guide

Step files and F3d files are included for modification. I used the 0.2 Strength present for the print on my X1 Carbon