Whether you’re looking to order a new front door or just get a more accurate quote when shopping, measuring is an essential step. It’s not hard to measure a front door, but it might not be intuitive if you haven’t done it before. Not to worry, we’ll explain what you need to know.

While single front doors are the most common, they’re not the only type of front door. Still, whether you have a double door, a door with a window next to it (called a sidelight), or a door with a window above it (called a transom), you’ll want to measure frame, rough opening, jamb depth, and panel. Read on for more details about measuring these various types of front doors.