https://articlescad.com/15-fun....ny-people-working-in
https://zenwriting.net/swissce....ll38/a-bifold-door-r
Repairing the Bottom of a Bifold Door Bifold doors can be great for saving space, but they can be troublesome when they begin to slide or scrape against the floor. These issues are easily fixable by making a few small adjustments. If your bifold door is scratching the floor, it's likely due to a broken track or a worn roller. The damaged rollers need to be replaced.