Most sliding closet doors hang by rollers from a track above. Bifold doors are anchored at the bottom and top of one side. On the opposite side, a guide pin slides through a top channel. Parts for these doors are readily available at home centers, hardware stores, or online. If you have a sliding closet door that glides on a bottom track, clean the track with a damp cloth to ensure smooth gliding. Lubricate the rollers but not the track, because lubricant will act as a magnet for dust. Remove a door by lifting and tilting the bottom out. If a roller is stuck, unscrew and remove it. If cleaning does not solve the problem, replace the roller unit. Editor’s tip: Bifold doors are light (some are louvered, and some are hollow-core), so the hardware isn’t heavy-duty. A top pin, which is spring-loaded so you can lift the door up and out, inserts into a bracket that can be moved to the left or right. The bottom pin rests in a bracket with several setting points for easy adjustment. The top roller slides through a track. If the bracket is too low (or sunk below carpeting), remove the door and the bracket. Cut a shim to fit under the bracket and reinstall the bracket. If you have a sliding closet door that glides on a bottom track, clean the track with a damp cloth to ensure smooth gliding. Lubricate the rollers but not the track because lubricant will act as a magnet for dust. Next, remove a door by lifting and tilting the bottom out. If a roller is stuck, unscrew and remove it. If cleaning does not solve the problem, replace the roller unit. The doors slide through a bottom guide on the floor. If the guide is out of alignment, adjust the guide and drive longer screws. If the guide is not high enough to capture the doors, place a small shim under the guide.
