So, reducing the size of the door should be done after you have exhausted other methods.

And doors made of other materials like metal or fiberglass cannot be cut down. But this can be more difficult than it seems, especially on hollow-core interior doors that do not respond well to planing or sanding. Sanding, planing, or otherwise shaving the door down to a smaller size might seem like the natural way to fix the door. So, when a door is misalignedscuffing or scraping when opened and closed or door latches don’t fit into the receiving strike plateit’s an annoyance that can never be ignored. When a door precisely opens and closes, we don’t think of it as a miracle it’s simply what we expect to happen.