[Dantilla]

Home Depot is great for picking up a standard sized door on the spot.
For anything custom, you're better off going to a place that builds pre-hung doors. That's where the pro builders go. They can do a one-off size just as quickly as a standard door, usually for much less than Home Defect. Home Depot charges extra for the inconvenience factor. They just want to stock a bunch of doors, and watch people carry them away. A special order is not what they like to do.