Which Rooms Need a Mezuzah?

This is one of the most common questions that we receive.  Unfortunately, there is no way for me to answer it completely in this post.  (Well, maybe I really could, but I would probably scare away all of our readers before it was done.)  So I am going to try to give some basic outlines.  As always, if you have questions you can email us or contact your local Rabbi.

The basic rule is every room in your house needs a Mezuzah except the bathroom

There are some exceptions.  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 door isn't shaped in a way to need a mezuzah.

  • A room which is used exclusively for a purpose which is not apropriate for a Mezuzah.  Such as a dressing room.

These are some rooms which do 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 living room or dining room each require a Mezuzah even if there are several of them in a row.

  • Sliding glass door .

I was gonna write more now, but I think I will leave it at that before I put everyone to sleep.  If you have a question feel free to write or even better post it in the comments so I can answer for everyone.

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  • Does a washroom need a mezuza

    Tzirel on
  • Which side of the entrance door should the mezuzah be affixed?

    Joan Walters on
  • 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.

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

    Rob on

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