Having trouble getting a good feel for fire sprinkler design criteria for compact, mobile storage shelves. These contain Class I-IV commodities. As I understand it, NFPA 13 only covers light hazard for compact shelving.
The metal shelves have a height of 8-feet, the ceiling height is 26-feet. The room is 3,000 sqft, and the shelves have a footprint within that space of 21 x 30 feet. Any help is appreciated. Sent in anonymously for discussion. Discuss This | Submit Your Question | Subscribe
7 Comments
Dan Wilder
2/18/2021 08:32:55 am
Depending on what your current adopted standard is...
Reply
Brian Gerdwagen FPE
2/18/2021 09:10:17 am
I'm getting hung-up on the "mobile" part. Do you mean this type of shelving?
Reply
Dan Wilder
2/18/2021 09:29:02 am
More this setup is what I'm thinking...
Reply
Franck
2/18/2021 11:04:40 am
As indicated by Dan, by considering this as an OH Gr 2 based on NFPA 13 13.2.1 (!4.3.1.7.1 in 2019 Edition ), you are fine with cl IV and all classes of storage, from pile to shelves, from single to multiple row racks.
Reply
Franck
2/18/2021 11:20:41 am
Otherwise, you are right, if you consider the same storage arrangement with a class III commodity, this is covered under §20.6 in NFPA 13 2016 (21.12 in NFPA 2019) and is considered as a Light hazard occupancy.
Reply
Jesse
2/18/2021 11:37:09 am
A Class-IV Commodity stored to 8-ft is protected as OH-2 in any arrangement
Reply
Arnold Wilkins
2/18/2021 12:50:15 pm
The compact storage shelving I have been seeing lately is similar to this link.
Reply
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