Just because the max spacing is 16-6 doesn't mean it has to be that far apart, with multiple row racking you may have to have them spaced at 8'-4 apart so that you don't go over the sqft requirement. 124/8.333=14'-10
Thanks Brett Peters General Manager Installation & Design Proudline Fire Protection Services Ltd. br...@proudline.ca 780 490 7602 office ext 202 780 490 7605 fax 780 777 0568 cell 780 718 2676 24h Visit us at www.proudline.ca Proudline now offers ULc listed monitoring services, please contact a...@proudline.ca for more information On Mon, Jan 29, 2024 at 12:36 PM James Crawford <jcrawf...@phaserfire.ca> wrote: > I hope I am reading this wrong but here goes. We are using NFPA #13 > (2022ed) section 23.4. > > > > We have a client that said they would be storing exposed expanded group A > plastics on racking and we advised about the requirement for vertical > barriers. > > > > They now supply us with the racking drawing and they have multi-row > racking, I had assumed the same requirement for the vertical barriers, but > the more I read the more confused I have become. > > > > Section 23.4 Protection of Exposed Expanded Group A Plastics. > > 23.4.1 Protection on single, double and multi-row racking > > 23.4.7 Racks shall have vertical barriers spaced at not more than 16’-6” > > 23.4.7.2 The plan area of storage between the vertical barriers and aisles > shall not exceed 124ft² > > > > So if my math is correct and they install a vertical barrier at every > second upright (16’6”) apart this would mean that the maximum rack depth > would be 7’-6”. > > > > 124/16.5=7.5 > > > > This is barely double row racks with a flue space and would never be able > to protect multi-row racking. > > > > I guess my question is have I missed something or is this correct? > > > > Thank You > > > > James Crawford > > Phaser Fire Protection Ltd. > > Phone 604-888-0318 > > Cel: 604-790-0938 > > Email jcrawf...@phaserfire.ca > > Web: www.phaserfire.ca > > > > _________________________________________________________ > SprinklerForum mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to > sprinklerforum-le...@lists.firesprinkler.org >
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