Am I allowed to put a wall standard within 18″ of a fire sprinkler

code-compliancefire-sprinklershelving

From my understanding, in San Francisco, CA, there is a code requirement that you cannot obstruct an area within 18 inches of a fire sprinkler. What is meant by obstruction? Say, you installed one of these: http://rakks.com/wall-mounted-standards/

Best Answer

The standard itself is fine, just be wary of what attaches to it

Since a standard that is less than 1" deep off the wall is going to be shallower than a sidewall sprinkler's escutcheon, it will not "prevent the pattern from fully developing", therefore NFPA 13 8.10.7.2 does not apply:

8.10.7.2.1.1 Continuous or noncontinuous obstructions less than or equal to 18 in. (457 mm) below the sprinkler deflector that prevent the pattern from fully developing shall comply with this section.

However, you do need to be careful with how you set up your storage to avoid running afoul of the intent of 8.10.7.3 with the storage itself. I would follow the same 18" rule enforced for standard sidewall sprinklers by 8.7.6:

8.7.6 Clearance to Storage (Standard Sidewall Spray Sprinklers). The clearance between the deflector and the top of storage shall be 18 in. (457 mm) or greater.

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