Sprinkler Required in Recessed Closet with Door?

11/12/2018

I've come across several retail projects where there will be a "closet" that is just solid shelves about 18-24 inches deep and about four or five shelves tall, with a mirror across the front that acts as a door. It's certainly possible to provide a sprinkler outside of the closet and protect to the back of the hazard, but is this approach allowed?

To me it doesn't seem practical to provide a sprinkler at the top inside this shallow unit just as we wouldn't provide a sprinkler within the inside of cabinetry. If anything, the multiple solid shelves could prevent heat from collecting at the top and water from effectively reaching the bottom, although the door could also prevent discharge from reaching the bottom. Curious how others would approach these situations.

Posted anonymously by a member for discussion. Discuss this | Subscribe.

2 Comments

sean

11/12/2018 09:17:07 am

Is it a closet or cabinetry. It makes a difference per the code.

WES

11/12/2018 10:53:51 am

This sounds like it would be allowed for omission by NFPA 13 8.1.1(7), as it is similar to furniture, trophy cases, or similar features. As always it'd probably be a discussion with the AHJ for the best approach -

NFPA 13 8.1.1(7) (2016 Edition): Furniture, such as portable wardrobe units, cabinets, trophy cases, and similar features not intended for occupancy, does not require sprinklers to be installed in them. This type of feature shall be permitted to be attached to the finished structure.

Protection would need to occur to the wall behind, per NFPA 13 8.5.3.2.3:

NFPA 13 8.5.3.2.3 (2016) The distance from the wall to the sprinkler shall be measured to the wall behind furniture, such as wardrobes, cabinets, and trophy cases.

To Sean's point - since there's no space to "occupy" the area in between the front face of the shelf and the door, so I'm not sure that it functions like a typical walk-in closet. That being said, NFPA 13 doesn't define closet or cabinet nor does the NFPA Glossary of Terms - https://www.nfpa.org/-/media/Files/Codes-and-standards/Glossary-of-terms/glossary_of_terms_2018.ashx?la=en

Free Signup

Subscribe and learn something new each day:

Community

Thank You to Our Top
February '21 Contributors!

1. Dan W.
2. Franck
3. Jesse
4. CJ B.
5. Brian G.

6. Mike
7. Matt
8. Casey M.
9. Jay R.
10. Glenn B.

Your Post

SUBMIT A QUESTION

The Toolkit

Sprinkler Designer or Engineer?

Get all of our tools, including the Sprinkler Database, Friction Loss Calculator, Fire Pump Analyzer and more:

FREE 30-DAY TRIAL

GET THE TOOLKIT

Why Sponsor?

Filters

Exam Prep

2020 PE Prep Guide
(Available Now!)

PE Prep Series
(Available Now!)

2020 PE Prep Series
Current Leaderboard
(Click to enlarge)

PE Problems

Visit July-October for daily Fire Protection PE Exam sample questions.

Solutions are posted the day after posting.

Comment with your solutions, questions or clarifications.

Please note that questions posted are unofficial and in accordance with NCEES rules are intended to be similar to actual exam questions, not actual exam questions themselves.

RSS Feed

Home - About - Blog - Contact - Exam Prep - Store

Copyright © 2021 MeyerFire, LLC
The views, opinions, and information found on this site represent solely the author shown and do not represent the opinions of any other party, nor does the presented material assume responsibility for its use. Fire protection and life safety systems constitute a critical component for public health and safety and you should consult with a licensed professional for proper design and code adherence. Some (not all) outbound links on this website, such as Amazon links, are affiliate-based where we receive a commission for orders placed elsewhere.