A steel door can cost up to three times the price of a standard door. Moreover, having it cut by a shop can also be costly. So when you move into a new home and your steel door does not fit that home’s doorway or causes other problems, you just might want to cut it yourself and save money.
Instructables shares a step-by-step guide with photos on how to cut a steel clad entry door to keep it snug without any leaks or other issues. The instructions are summarized into five main steps that include gathering the tools and supplies; preparing the door and determining how much you need to remove from your steel door; cutting, gutting, and plugging the steel door; adjusting the door frame; and applying any finish.
If you have the right tools and some DIY experience at home, this project should not be a problem for you.