5704.3.6.3 Fire protection and storage arrangements.
FC § 5704.3.6.3
Fire protection and container storage arrangements shall be in accordance with FC Table 5704.3.6.3(1) or the following: 1. Storage on shelves shall not exceed 6 feet (1829 mm) in height, and shelving shall be metal.
2.Storage on pallets or in piles greater than 4 feet 6 inches (1372 mm) in height, or where the ceiling exceeds 18 feet (5486 mm) in height, shall be protected by a sprinkler system in accordance with FC Table 5704.3.6.3(4), and the storage heights and arrangements shall be limited to those specified in FC Table 5704.3.6.3(2).
3.Storage on racks greater than 4 feet 6 inches (1372 mm) in height, or where the ceiling exceeds 18 feet (5486 mm) in height shall be protected in accordance with FC Tables 5704.3.6.3(5), 5704.3.6.3(6), 5704.3.6.3(7) and 5704.3.6.3(8) and the construction codes, including the Building Code as appropriate, and the storage heights and arrangements shall be limited to those specified in FC Table 5704.3.6.3(3). FC Table 5704.3.6.3(1)Maximum Storage Height in Control Areas Type of LiquidNonsprinklered Area(feet)Sprinklered Area(feet)SprinkleredBuildings a, b with In-Rack Protection(feet)Flammable liquids: Class IA Class IB Class IC44448841212Combustible liquids: Class II Class IIIA Class IIIB68881212121620 For SI: 1 foot = 304.8 mm. a In buildings protected throughout by a sprinkler system, the storage height for metallic containers shall not exceed the maximum height allowed by NFPA 30 based on the type of fire protection systems provided, or the maximum height as determined by the department based on a full-scale fire test, whichever is greater. These storage heights do not apply to storage of nonmetallic containers. b. In-rack protection shall be in accordance with FC Table 5704.3.6.3(5), 5704.3.6.3(6), 5704.3.6.3(7) or 5704.3.6.3(8) and the construction codes, including the Building Code. FC Table 5704.3.6.3(2)Storage Arrangements for Palletized or Solid-pile Storage in Liquid Storage Rooms and Warehouses ClassStorage LevelMaximum Storage HeightMaximum Quantity Per Pile(gallons)Maximum Quantity Per Room a(gallons)DrumsContainers b(feet)ContainersContainersIAGround floorUpper floorsBasements e11Not Allowed55Not Allowed3,0002,000Not Allowed12,0008,000Not AllowedIBGround floorUpper floorsBasements e11Not Allowed6.56.5Not Allowed5,0003,000Not Allowed15,00012,000Not AllowedICGround floor dUpper floorsBasements e11Not Allowed6.5 c6.5 cNot Allowed5,0003,000Not Allowed15,00012,000Not AllowedIIGround floor dUpper floorsBasements e3311010510,00010,0007,50025,00025,0007,500IIIGround floorUpper floorsBasements e55320201015,00015,00010,00050,00050,00025,000 For SI: 1 foot = 304.8 mm, 1 gallon = 3.785 L. a. See FC 5704.3.8.1 for unlimited quantities in liquid storage warehouses. b. In buildings protected throughout by a sprinkler system, the storage height for metallic containers shall not exceed the maximum height allowed by NFPA 30 based on the type of fire protection systems provided, or the maximum height as determined by the department based on a full-scale fire test, whichever is greater. These storage heights do not apply to storage of nonmetallic containers. c. These height limitations are allowed to be increased to 10 feet for containers having a capacity of 5 gallons or less. d. For palletized storage of unsaturated polyester resins (UPR) in relieving-style metal containers with 50 percent or less by weight Class IC or II liquid and no Class IA or IB liquid, height and pile quantity limits shall be allowed to be 10 feet and 15,000 gallons, respectively, provided that such storage is protected by sprinklers in accordance with NFPA 30 and that the UPR storage area is not located in the same containment area or drainage path for other Class I or II liquids. e. Basements include cellars and other areas below grade. FC Table 5704.3.6.3(3)Storage Arrangements for Rack Storage in Liquid Storage Rooms and Warehouses ClassType RackStorage LevelMaximum Storage Height(feet) bMaximum Quantity Per Room a(gallons)ContainersContainersIADouble row or Single rowGround floorUpper floorsBasements2515Not Allowed7,5004,500Not AllowedIBICDouble row or Single rowGround floorUpper floorsBasements2515Not Allowed15,0009,000Not AllowedIIDouble row or Single rowGround floorUpper floorsBasements25251524,00024,0009,000IIIMultirowDouble roomSingle rowGround floorUpper floorsBasements40202048,00048,00024,000 For SI: 1 foot = 304.8 mm, 1 gallon = 3.785 L. a. See FC 5704.3.8.1 for unlimited quantities in liquid storage warehouses. b. In buildings protected throughout by a sprinkler system, the storage height for metallic containers shall not exceed the maximum height allowed by NFPA 30 based on the type of fire protection systems provided, or the maximum height as determined by the department based on a full-scale fire test, whichever is greater. These storage heights do not apply to storage of nonmetallic containers. FC Table 5704.3.6.3(4)Sprinkler System Protection for Solid-pile and Palletized Storage of Liquids in Metal Containers and Portable Tanks a Storage ConditionsCeiling Sprinkler Design and DemandMinimum Hose Stream Demand(gpm)Minimum Duration Sprinklers and Hose Streams(hours)Class LiquidContainer size and arrangementDensity(gpm/ft2)Area (square feet)Maximum spacing(square feet)High temperature sprinklersOrdinary temperature sprinklersStorage ConditionsCeiling Sprinkler Design and DemandMinimum Hose Stream Demand(gpm)Minimum Duration Sprinklers and Hose Streams(hours)Class LiquidContainer size and arrangementDensity(gpm/ft2)Area (square feet)Maximum spacing(square feet)High temperature sprinklersOrdinary temperature sprinklers IA5 gallons or less, with or without cartons, palletized or solid pile b0.303,0005,0001007502Containers greater than 5 gallons, on end or side, palletized or solid pile0.605,0008,00080750 IB, IC and II5 gallons or less, with or without cartons, palletized or solid pile b0.303,0005,0001005002Containers greater than 5 gallons on pallets or solid pile, one high0.255,0008,000100 IIContainers greater than 5 gallons on pallets or solid pile, more than one high, on end or side0.605,0008,000807502III5 gallons or less, with or without cartons, palletized or solid pile0.253,0005,0001205001Containers greater than 5 gallons on pallets or solid pile, on end or sides, up to three high0.253,0005,0001205001Containers greater than 5 gallons, on pallets or solid pile, on end or sides, up to 18 feet high0.353,0005,0001007502 For SI: 1 foot = 304.8 mm, 1 gallon = 3.785 L, 1 square foot = 0.0929 m2, 1 gallon per minute = 3.785 L/m, 1 gallon per minute per square foot = 40.75 L/min/m2. a. The design area contemplates the use of Class II standpipe systems. Where Class I standpipe systems are used, the area of application shall be increased by 30 percent without revising density. b. For storage heights above 4 feet or ceiling heights greater than 18 feet, an approved engineering design shall be provided in accordance with FC 104.7.2. FC Table 5704.3.6.3(5)Sprinkler System Protection Requirements for Rack Storage of Liquids in Metal Containers of 5-Gallon Capacity or less with or Without Cartons on Conventional Wood Pallets a Class LiquidCeiling Sprinkler Design and DemandIn-Rack Sprinkler Arrangement and DemandMinimum Hose Stream Demand(gpm)Minimum Duration Sprinkler and Hose Stream(hours)Density (gpm/ft2) Area(square feet)Maximum SpacingRacks up to 9 feet deepRacks more than 9 feet to 12 feet deep30 psi(standard orifice)Number of sprinklers operating High Temperature SprinklersOrdinary Temperature Sprinklers 14 psi(large orifice)Class LiquidCeiling Sprinkler Design and DemandIn-Rack Sprinkler Arrangement and DemandMinimum Hose Stream Demand(gpm)Minimum Duration Sprinkler and Hose Stream(hours)Density (gpm/ft2) Area(square feet)Maximum SpacingRacks up to 9 feet deepRacks more than 9 feet to 12 feet deep30 psi(standard orifice)Number of sprinklers operating High Temperature SprinklersOrdinary Temperature Sprinklers 14 psi(large orifice)I(maximum 25-foot height)Option 10.403,0005,00080 ft2 / head1. Ordinary temperature, quick-response sprinklers, maximum 8 feet 3 inches horizontal spacing 2. One line sprinklers above each level of storage 3. Locate in longitudinal flue space, staggered vertical 4. Shields required where multilevel1. Ordinary temperature, quick-response sprinklers, maximum 8 feet 3 inches horizontal spacing 2. One line sprinklers above each level of storage 3. Locate in transverse flue spaces, staggered vertical and within 20 inches of aisle 4. Shields required where multilevel30 psi(0.5-inch orifice)1. Eight sprinklers if only one level 2. Six sprinklers each on two levels if only two levels 3. Six sprinklers each on top three levels, if three or more levels 4. Hydraulically most remote7502I(maximum 25-foot height)Option 20.552,000bNot Applicable100 ft2 / head1. Ordinary temperature, quick-response sprinklers, maximum 8 feet 3 inches horizontal spacing 2. See 2 above 3. See 3 above 4. See 4 above1. Ordinary temperature, quick-response sprinklers, maximum 8 feet 3 inches horizontal spacing 2. See 2 above 3. See 3 above 4. See 4 above14 psi(0.53-inch orifice)See 1 through 4 above5002I and II(maximum 14-foot storage height)(maximum three tiers)0.55c2,000 b, dNot Applicable100 ft2 / headNot ApplicableNone for maximum 6-foot-deep racksNot ApplicableNot ApplicableNot Applicable5002II(maximum 25-foot height)0.303,0005,000100 ft2 / head1. Ordinary temperature sprinklers 8 feet apart horizontally 2. One line sprinklers between levels at nearest 10-foot vertical intervals 3. Locate in longitudinal flue space, staggered vertical 4. Shields required where multilevel1. Ordinary temperature sprinklers 8 feet apart horizontally 2. Two lines between levels at nearest 10-foot vertical intervals 3. Locate in transverse flue spaces, staggered vertical and within 20 inches of aisle 4. Shields required where multilevel30 psiHydraulically most remote – six sprinklers at each level, up to a maximum of three levels7502III(40-foot height)0.253,0005,000120 ft2 / headSame as forClass II liquidsSame as forClass II liquids30 psiSame as forClass II liquids5002 For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 square foot = 0.0929 m2, 1 pound per square inch = 6.895 kPa, 1 gallon = 3.785 L, 1 gallon per minute = 3.785 L/m, 1 gallon per minute per square foot = 40.75 L/min/m2. a. The design area contemplates the use of Class II standpipe systems. Where Class I standpipe systems are used, the area of application shall be increased by 30 percent without revising density. b. When the installation uses listed or approved extra-large orifices, high-temperature quick-response or standard element sprinklers, such spaces may be provided with a maximum 30-foot ceiling height provided minimum 7.5-foot aisles are maintained. c. For friction lid cans and other metal containers equipped with plastic nozzles or caps, the density shall be increased to 0.65 gpm per square foot using listed or approved extra-large orifice, high-temperature quick-response sprinklers. d. When the installation uses listed or approved extra-large orifice, high-temperature quick-response or standard element sprinklers, such spaces may be provided with a maximum 18-foot ceiling height provided minimum 7.5-foot aisles are maintained and only metal containers are stored. FC Table 5704.3.6.3(6)Sprinkler System Protection Requirements for Rack Storage of Liquids in Metal Containers Greater than 5-Gallon Capacity a Class LiquidCeiling Sprinkler Design and DemandIn-Rack Sprinkler Arrangement and DemandMinimum Hose Stream Demand(gpm)Minimum Duration Sprinkler and Hose Stream(hours)Density(gpm/ ft2) Area(square feet)Maximum spacingOn-side storage racks up to 9-foot-deep racksOn-end storage (on pallets) up to 9-foot-deep racksMinimum nozzle PressureNumber of sprinklers operating High Temperature SprinklersOrdinary Temperature Sprinklers IA(maximum 25-foot height)0.603,0005,00080 ft2 / head1. Ordinary temperature sprinklers 8 feet apart horizontally 2. One line sprinklers above each tier of storage 3. Locate in longitudinal flue space, staggered vertical 4. Shields required where multilevel1. Ordinary temperature sprinklers 8 feet apart horizontally 2. One line sprinklers above each tier of storage 3. Locate in longitudinal flue space, staggered vertical 4. Shields required where multilevel30 psiHydraulically most remote – six sprinklers at each level1,0002IB, IC and II(maximum 25-foot height)0.603,0005,000100 ft2 / head1. See 1 above 2. One line sprinklers every three tiers of storage 3. See 3 above 4. See 4 above1. See 1 above 2. See 2 above 3. See 3 above 4. See 4 above30 psiHydraulically most remote – six sprinklers at each level7502III(maximum 40-foot height)0.253,0005,000120 ft2 / head1. See 1 above 2. One line sprinklers every sixth level (maximum) 3. See 3 above 4. See 4 above1. See 1 above 2. One line sprinklers every third level (maximum) 3. See 3 above 4. See 4 above15 psiHydraulically most remote – six sprinklers at each level5001 For SI: 1 foot = 304.8 mm, 1 square foot = 0.0929 m2, 1 pound per square inch = 6.895 kPa, 1 gallon = 3.785 L, 1 gallon per minute = 3.785 L/m, 1 gallon per minute per square foot = 40.75 L/min/m2. a. The design assumes the use of Class II standpipe systems. Where a Class I standpipe system is used, the area of application shall be increased by 30 percent without revising density. FC Table 5704.3.6.3(7)Automatic AFFF Water Protection Requirements for Rack Storage of Liquids in Metal Containers Greater than 5-gallon Capacity a, b Class LiquidCeiling Sprinkler Design and DemandIn-Rack Sprinkler Arrangement and Demand cDurationAFFF Supply(minimum)Duration Water Supply(hours)Density(gpm/ ft2) Area(square feet)On-end storage of drums on pallets, up to 25 feetMinimum nozzle pressure(psi)Number of Sprinklers OperatingHose stream demand d(gpm High Temperature SprinklersOrdinary Temperature Sprinklers IA, IB, IC and II0.301,5002,5001. Ordinary temperature sprinkler up to 10 feet apart horizontally 2. One line sprinklers above each level of storage 3. Locate in longitudinal flue space, staggered vertically 4. Shields required for multilevel30Three sprinklers per level500152 For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 square foot = 0.0929 m2, 1 pound per square inch = 6.895 kPa, 1 gallon = 3.785 L, 1 gallon per minute = 3.785 L/m, 1 gallon per minute per square foot = 40.75 L/min/m2. a. System shall be a closed-head wet system with approved devices for proportioning aqueous film-forming foam. b. Except as modified by this table, in-rack sprinklers shall be installed in accordance with NFPA 13, as modified by FC Appendix B. c. Storage heights shall not exceed 25 feet. d. Hose stream demand includes 1 1/2-inch inside hand hose, when required. FC Table 5704.3.6.3(8)Sprinkler System Protection Requirements for Class I Liquid Storage in Metal Containers of 1-Gallon Capacity or less with Uncartoned or Case-Cut Shelf Display up to 6.5 Feet, and Palletized Storage above in a Double-Row Rack Array a Storage HeightCeiling Sprinkler Design and DemandIn-Rack Sprinkler Arrangement and DemandMinimum Hose Stream Demand(gpm)Minimum Duration Sprinkler and Hose Stream(hours)Density(gpm/ft2) Area(square feet)Maximum spacingRacksup to 9 feet deepRacks9 to 12 feetMinimum nozzle pressureNumber of sprinklers operating High TemperatureOrdinary Temperature Maximum 20-foot storage height0.602,000bNot Applicable100 ft2 / head1. Ordinary temperature, quick-response sprinklers, maximum 8 feet 3 inches horizontal spacing 2. One line of sprinklers at the 6-foot level and the 11.5-foot level of storage 3. Locate in longitudinal flue space, staggered vertical 4. Shields required where multilevelNot Applicable30 psi(standard orifice)or14 psi(large orifice)1. Six sprinklers each on two levels 2. Hydraulically most remote 12 sprinklers5002 For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 square foot = 0.0929 m2, 1 pound per square inch = 6.895 kPa, 1 gallon = 3.785 L, 1 gallon per minute = 3.785 L/m, 1 gallon per minute per square foot = 40.75 L/min/m2. a. This table shall not apply to racks with solid shelves. b. When the installation uses extra-large orifice sprinklers, such spaces may be provided with a maximum 30-foot ceiling height provided minimum 7.5-foot aisles are maintained.
