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Which Rooms Need a Mezuzah?

This is one of the most common questions that we receive.  Here are some basic outlines.  As always, if you have questions you can email us or contact your local Rabbi.

Besides your front door, most other doors in your house should have a Mezuzah. 

The basic rule is most rooms in your house need a Mezuzah.

All of the following usually need a Mezuzah

  • The back door
  • Bedrooms
  • Kitchen
  • Dining room
  • Family room
  • Balconies and patios
These are some rooms which need a Mezuzah which you may not have thought of:
  • Walk in closets (if they have 36 sq feet).

  • Garage. (Usually needs 2 or 3 Mezuzahs.  One on the car port door, one on the door that enters the house and one on the door that enters from the side.)

  • Study.

  • French doors into a living room or dining room each require a Mezuzah even if there are several of them in a row.

  • Sliding glass door .

The following rooms do not need a Mezuzah:

  • A room which is smaller than 36 square feet.

  • A room which is completely open and doesn't have a door, or if the door isn't shaped in a way to need a mezuzah.

  • A room which is used exclusively for a purpose which is not appropriate for a Mezuzah, such as a dressing room.

If you have a question feel free to write



Does a washroom need a mezuza

Joan Walters

Which side of the entrance door should the mezuzah be affixed?

Aaron Shaffier

That’s a great question Rob.

In general in the Talmud it is assumed that a person’s personal space is 4 cubits squared. I think this may have to do with the fact that if you spread your arms out, the span is around 4 cubits (6 feet give or take).

Based on this, a room needs 4 square cubits to be considered inhabitable.


What’s the history behind setting the size of a room that requires a Mezuzah at 36 sq ft (or 16 square cubits)?

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