Do garage doors, boiler rooms, attics, outdoor sheds, or crawl spaces require mezuzahs?
According to many rabbinical authorities, mezuzahs are required on all garage doors (including garage overhead doors), boiler rooms, outdoor sheds, and even crawl spaces, provided that they comply with the required measurements (approximately 37 square feet). At the entrance to a crawl space, the doorposts themselves must be at least 10 handbreadths high (approximately 32 inches) and four handbreadths wide. An attic also requires a mezuzah unless it has a horizontal doorway. QUESTION: How do I measure 37 sq. foot in a boiler room? ANSWER: The measurement of 37 square feet should NOT include the space being used by permanently mounted appliances or fixtures (e.g. boilers, cabinets). QUESTION: Are Mezuzahs required on doors where refuse is stored? ANSWER: No. The same will apply for any room with a strong odor. QUESTION: Am I required to affix a Mezuzah on a door leading to an empty room which is not being used at all? ANSWER: Some authorities exempt the placing of a Mezuzah on such room
