The closet doors sliding rubbing together can accelerate wear of wood and generate an unpleasant sound. These doors are also more difficult to open due to friction generated. You can usually remedy this if you make a few adjustments to how they are placed. In some cases, the elements metal former should be replaced to allow this slide freely without any friction with each other. Inspect doors and components help identify the source of the problem.
Look inside the closet doors sliding to ensure that the mechanisms that allow these damned are set appropriately within the head rail. Inspect the base of the doors to make sure that they are properly placed in brackets or bottom rails. If any of the doors is a little outside the rails, you may rub together.
Inspect the rail itself to determine its condition. A bent rail can cause the closet doors sliding rubbing or touching each other. Replaces the track of one or two doors that are bent or damaged and not allow it to slide freely. Remove the door from the rails. Sand the edges and elsewhere in these rub against other parts of wood. A smooth surface allows the wood to slide more smoothly than a rough surface.