It depends on the type of door: Most of the doors can be cut up to 2 inches. However, the limit of the cut must be verified with the company. Most of the products that can be cut down in width or height have this option on the product options. Many of our products that are not trimmable can be custom made at an affordable rate. Can I cut a door to size?
In short, look up the product options, if you do not find any option for trimming the door, then you can open a ticket to verify if it can cut down. You may also provide a general explanation to the client as above.