3. Which Rooms Require a Mezuzah?

Before you go out to purchase your mezuzahs, you need to figure out how many your house requires. Which doorways need a mezuzah?

A mezuzah is affixed to every doorway in your home or office that leads into a proper room, except for the bathroom. What qualifies as a "room"? Any enclosed space that's at least 6.5 ft. x 6.5 feet. This includes vestibules, hallways, large walk-in closets, etc.

If there are several doorways leading into a room, each doorway requires its own mezuzah. Doorways without doors (e.g., archways between rooms) also require a mezuzah. Count the doorways that qualify to determine the number of mezuzahs you need to acquire.