Heads up: There are no amended sections in this chapter.
Hose connections shall not be required for the protection of miscellaneous storage.
Table 13.2.1 and Figure 13.2.1 shall apply to any of the following situations:
  1. Miscellaneous storage of Class I through Class IV commodities up to 12 ft (3.7 m) in height
  2. Miscellaneous storage of Group A plastics up to 12 ft (3.7 m) in height
  3. Miscellaneous storage of rubber tires up to 12 ft (3.7 m) in height
  4. Miscellaneous storage of rolled paper up to 12 ft (3.7 m) in height
  5. Storage of Class I through Class IV commodities up to 12 ft (3.7 m) in height as directed by 14.2.3.1 and 16.2.1.2.1
  6. Storage of Group A plastics up to 5 ft (1.5 m) in height as directed by 15.2.1 and 17.2.1.1

Table 13.2.1 Discharge Criteria for Miscellaneous Storage Up to 12 ft (3.7 m) in Height

Commodity Type of Storage Storage Height Maximum Ceiling Height Design Curve Figure 13.2.1 Note Inside Hose Total Combined Inside and Outside Hose Duration (minutes)
ft m ft m gpm L/min gpm L/min
Class I to Class IV
Class I Solid-piled, palletized, bin box, shelf, rack, and back-to-back shelf storage ≤12 ≤3.7 OH1   0, 50, 100 0, 189, 379 250 946 90
Class II ≤10 ≤3.0 OH1   0, 50, 100 0, 189, 379 250 946 90
Class II >10 to ≤12 >3.0 to ≤3.7 OH2   0, 50, 100 0, 189, 379 250 946 90
Class III ≤12 ≤3.7 OH2   0, 50, 100 0, 189, 379 250 946 90
Class IV ≤10 ≤3.0 OH2   0, 50, 100 0,189, 379 250 946 90
Class IV Palletized, bin box, shelf, and solid-piled >10 to ≤12 >3.0 to ≤3.7 32 9.8 OH2   0, 50, 100 0, 189, 379 250 946 90
Rack and back-to-back shelf storage >10 to ≤12 >3.0 to ≤3.7 32 9.8 EH1   0, 50, 100 0, 189, 379 500 1893 120
Group A Plastic Storage
Cartoned Unexpanded and expanded Solid-piled, palletized, bin box, shelf, and back-to-back shelf storage ≤5 ≤1.5 OH2   0, 50, 100 0, 189, 379 250 946 90
>5 to ≤10 >1.5 to ≤3.0 15 4.6 EH1   0, 50, 100 0, 189, 379 500 1893 120
>5 to ≤10 >1.5 to ≤3.0 20 6.1 EH2   0, 50, 100 0, 189, 379 500 1893 120
>10 to ≤12 >3.0 to ≤3.7 17 5.2 EH2   0, 50, 100 0, 189, 379 500 1893 120
Solid-piled, palletized, bin box, shelf, and back-to-back shelf storage >10 to ≤12 >3.0 to ≤3.7 32 9.8 EH2   0, 50, 100 0, 189, 379 500 1893 120
Rack >10 to ≤12 >3.0 to ≤3.7 32 9.8 OH2 +1 level of in-rack 0, 50, 100 0, 189, 379 250 946 90
Exposed Solid-piled, palletized, bin box, shelf, rack, and back-to-back shelf storage ≤5 ≤1.5 OH2   0, 50, 100 0, 189, 379 250 946 90
Solid-piled, palletized, bin box, shelf, and back-to-back shelf storage >5 to ≤8 >1.5 to ≤2.4 28 8.5 EH2   0, 50, 100 0, 189, 379 500 1893 120
Solid-piled, palletized, bin box, shelf, rack, and back-to-back shelf storage >5 to ≤10 >1.5 to ≤3.0 15 4.6 EH2   0, 50, 100 0, 189, 379 500 1893 120
Unexpanded Solid-piled, palletized, bin box, shelf, rack, and back-to-back shelf storage >5 to ≤10 >1.5 to ≤3.0 20 6.1 EH2   0, 50, 100 0, 189, 379 500 1893 120
Expanded Rack >5 to ≤10 >1.5 to ≤3.0 20 6.1 OH2 +1 level of in-rack 0, 50, 100 0, 189, 379 250 946 90
Unexpanded and expanded Solid-piled, palletized, bin box, shelf, and back-to-back shelf storage >10 to ≤12 >3.0 to ≤3.7 17 5.2 EH2   0, 50, 100 0, 189, 379 500 1893 120
Rack >10 to ≤12 >3.0 to ≤3.7 17 5.2 EH2   0, 50, 100 0, 189, 379 500 1893 120
>10 to ≤12 >3.0 to ≤3.7 32 9.8 OH2 +1 level of in-rack 0, 50, 100 0, 189, 379 250 946 90
Tire Storage
Tires On floor, on side >5 to ≤12 >1.5 to ≤3.7 32 9.8 EH1   0, 50, 100 0, 189, 379 500 1893 120
On floor, on tread, or on side ≤5 ≤1.5 OH2   0, 50, 100 0, 189, 379 250 946 90
Single-, double-, or multiple-row racks on tread or on side ≤5 ≤1.5 OH2   0, 50, 100 0, 189, 379 250 946 90
Single-row rack, portable, on tread or on side >5 to ≤12 >1.5 to ≤3.7 32 9.8 EH1   0, 50, 100 0, 189, 379 500 1893 120
Single-row rack, fixed, on tread or on side >5 to ≤12 >1.5 to ≤3.7 32 9.8 EH1   0, 50, 100 0, 189, 379 500 1893 120
>5 to ≤12 >1.5 to ≤3.7 32 9.8 OH2 +1 level of in-rack 0, 50, 100 0, 189, 379 250 946 90
Rolled Paper Storage
Heavyweight and mediumweight On end ≤10 ≤3.0 30 9.1 OH2   0, 50, 100 0, 189, 379 250 946 90
Tissue and lightweight On end ≤10 ≤3.0 30 9.1 EH1   0, 50, 100 0, 189, 379 250 946 120

FIGURE 13.2.1 Miscellaneous Storage Up to 12 ft (3.7 m) in Height — Design Curves (see Table 13.2.1).

Installation criteria as permitted by NFPA 13 and design criteria and modifiers as permitted by the density/area method of Chapter 11 for ordinary hazard Group 1, ordinary hazard Group 2, extra hazard Group 1, and extra hazard Group 2 occupancies shall be applicable for the protection of any of the following:
  1. Miscellaneous storage as described by Table 13.2.1
  2. Commodity Class I through Class IV storage 12 ft (3.7 m) or less in height as directed by 14.2.3.1 and 16.2.1.2.1
  3. Storage of Group A plastics up to 5 ft (1.5 m) in height as directed by 15.2.1 and 17.2.1.1
Where K-11.2 (160) or larger sprinklers are used with EH1 or EH2 design curves from Figure 13.2.1, the design area shall be permitted to be reduced by 25 percent but not below 2000 ft2 (186 m2), regardless of temperature rating.
In-rack sprinklers required by Table 13.2.1 shall meet the requirements of this section and the applicable storage protection and arrangement sections of this chapter.
In-rack sprinklers shall have a K-factor of 5.6 (80) or larger and operate at a minimum of 15 psi (1 bar).
Where one level of in-rack sprinklers is installed for miscellaneous storage, water demand shall be based on simultaneous operation of the hydraulically most demanding four adjacent sprinklers.
In-rack sprinklers for miscellaneous storage shall be located at the first tier level at or above one-half of the storage height.
Maximum horizontal spacing of in-rack sprinklers in single- or double-row racks with Class I, II, III, or IV commodities shall be in accordance with Table 13.3.4.2.

Table 13.3.4.2 In-Rack Sprinkler Spacing for Class I, II, III, and IV Commodities Stored in Single- or Double-Row Racks Up to 12 ft (3.7 m) in Height

Encapsulated Aisle Widths   Commodity Class
  I and II   III   IV
ft m   ft m   ft m   ft m
No 8 2.4   12 3.7   12 3.7   10 3.0
No 4 1.2   12 3.7   10 3.0   10 3.0
Yes   8 2.4   8 2.4   8 2.4
In-rack sprinklers shall be located in the longitudinal flue at the intersection of the transverse flues while not exceeding the maximum spacing rules.
If no longitudinal flue is provided in single- and double-row racks, in-rack sprinklers shall be located within 12 in. (300 mm) of the center of the rack while not exceeding the maximum spacing.
Where distances between transverse flues exceed the maximum allowable distances, sprinklers shall be installed at the intersection of the transverse and longitudinal flues and additional sprinklers shall be installed between transverse flues to meet the maximum distance rules.
Where no transverse flues exist, in-rack sprinklers shall not exceed the maximum spacing rules.
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