How to measure a interior door for your next project

Knowing how to measure a interior door correctly saves you a massive headache at the hardware store and keeps you from having to return a heavy slab that just won't fit. It sounds like a simple enough task—you just pull out a tape measure and call it a day, right? Well, not exactly. If you've ever tried to hang a door only to realize it's a quarter-inch too wide or that the hinges don't line up, you know how quickly a "five-minute job" can turn into an all-day ordeal. ...

May 15, 2026 · 7 min · Gracey Chanda