High-piled combustible storage shall be in accordance with this chapter. In addition to the requirements of this chapter, the following material-specific requirements shall apply:
- Aerosols shall be in accordance with Chapter 51.
- Flammable and combustible liquids shall be in accordance with Chapter 57.
- Hazardous materials shall be in accordance with Chapter 50.
- Storage of combustible paper records shall be in accordance with NFPA 13.
- Storage of combustible fibers shall be in accordance with Chapter 37.
- General storage of combustible material shall be in accordance with Chapter 3.
At the time of building permit application for new structures designed to accommodate high-piled storage or for requesting a change of occupancy/use, and at the time of application for a storage permit, plans and specifications shall be submitted for review and approval. In addition to the information required by the International Building Code, the storage permit submittal shall include the information specified in this section. The construction documents shall include all of the following:
- Floor plan of the building showing locations and dimensions of high-piled storage areas.
- Usable storage height for each storage area.
- Number of tiers within each rack, if applicable.
- Commodity clearance between top of storage and the sprinkler deflector for each storage arrangement.
- Aisle dimensions between each storage array.
- Maximum pile volume for each storage array.
- Location and classification of commodities in accordance with Section 3203.
- Location of commodities that are banded or encapsulated.
- Location of required fire department access doors.
- Type of fire suppression and fire detection systems.
- Location of valves controlling the water supply of ceiling and in-rack sprinklers.
- Type, location and specifications of smoke removal and curtain board systems.
- Dimension and location of transverse and longitudinal flue spaces.
- Additional information regarding required design features, commodities, storage arrangement and fire protection features within the high-piled storage area shall be provided at the time of permit, where required by the fire code official.
A floor plan, of legible size, shall be provided, mounted on a wall and protected from damage. The floor plan shall be mounted in an approved location and show the following:
- Locations, dimensions and rack layout of high-piled storage areas.
- Design storage height for each storage area.
- Types of commodities.
- Commodity clearance between top of storage and the sprinkler deflector for each storage arrangement.
- Aisle dimensions between each storage array.
- For palletized and solid-piled storage, the maximum pile volume for each storage array.
- Location and classification of commodities in accordance with Section 3203.
- Location of required fire department access doors.
- Location of valves controlling the water supply of ceiling and in-rack sprinklers.
Where required by the Section 403, a fire safety and evacuation plan shall be submitted at the time of permit application for review and approval. A copy of the approved fire safety and evacuation plan shall be maintained on the premises in an approved location.
The following terms are defined in Chapter 2:
Table 3203.8 shall be used to determine the commodity classification for various products and materials. Products not found in the list shall be classified based on the classification descriptions in Sections 3203.2 through 3203.6 and the products they most nearly represent in Table 3203.8. Table 3203.8 considers the product and the packaging if listed with the item. Products with additional packaging consisting of Group A plastics shall be classified in accordance with Section 3203.9.
The commodity classifications are based on products with, or without, wood pallets. Where plastic pallets are used, the commodity classification shall be modified in accordance with Section 3203.10.
EXAMPLES OF COMMODITY CLASSIFICATION
PRODUCT CATEGORY | PRODUCT | CLASSIFICATION |
Aerosols | Level 1 | Class III (See Chapter 51) |
Level 2 | Class IV (See Chapter 51) | |
Level 3 | High-hazard (See Chapter 51) | |
Batteries | Dry cells (excludes lithium, lithium-ion and other similar exotic metals or combustible electrolyte); without blister packing (if blister packed, refer to the commodity classification definitions) | Class I |
Dry cells (nonlithium or similar exotic metals); in blister packing; cartoned | Class II | |
Vehicle; any size (for example, automobile or truck); empty plastic casing | High-hazard (Group A unexpanded) | |
Vehicle; large (in other words, truck or larger); dry or wet cells (excludes lithium-ion and other cells containing combustible electrolytes) | High-hazard (Group A unexpanded) | |
Vehicle; small (for example, automobile); wet cells (excludes lithium-ion and other cells containing combustible electrolytes) | Class I | |
Biomass | Circular baled corn stover | Class IV |
Rectangular baled corn stover | Class III | |
Rectangular baled switchgrass | High-hazard | |
Empty containers | Noncombustible | Class I |
PET | Class IV | |
Rigid plastic (not including PET) | High-hazard (Group A unexpanded) | |
Wood; solid sided (such as crates, boxes) | Class II | |
Film rolls, including photographic | Polypropylene, polyester, polyethylene; rolled on any reel type | High-hazard (Group A unexpanded) |
35 mm metal film cartridges in polyethylene cans; cartoned | Class III | |
Motion picture or bulk rolls in polycarbonate, polyethylene or in metal cans; polyethylene bagged; cartoned | Class II | |
Rolls in polycarbonate plastic cassettes; cartoned | Class IV | |
Photographic paper; sheets; bagged in polyethylene; cartoned | Class III | |
Flammable and combustible liquids | Glycol in combustible containers (50 percent or greater) | High-hazard |
Lacquers, which dry by solvent evaporation, in metal cans or cartons | High-hazard | |
Lighters; butane; blister-packed; cartoned | High-hazard (Group A unexpanded) | |
Over 20- and up to 50-percent alcohol (such as alcoholic beverages, hair spray); up to 1-gallon glass bottles or jars; in racks; cartoned | Class III | |
Over 20- and up to 50-percent alcohol (such as alcoholic beverages, hair spray); up to 1-gallon glass bottles or jars; palletized; cartoned | Class IV | |
Over 20- and up to 50-percent alcohol (such as alcoholic beverages, hair spray); up to 1-gallon plastic bottles or jars; cartoned | Class IV | |
Up to 20-percent alcohol (such as alcoholic beverages, flavoring extracts); greater than 5-gallon plastic containers with wall thickness greater than 0.25 inch | High-hazard (Group A unexpanded) | |
Up to 20-percent alcohol (such as alcoholic beverages, flavoring extracts); metal, glass or ceramic containers | Class I | |
Up to 20-percent alcohol (such as alcoholic beverages, flavoring extracts); plastic containers greater than 5 gallons and wall thickness up to 1/4 inch | Class II | |
Up to 20-percent alcohol (such as alcoholic beverages, flavoring extracts); up to 5-gallon plastic bottles or jars | Class I | |
Up to 20-percent alcohol (such as alcoholic beverages, flavoring extracts); wood containers | Class II | |
Lubricating or hydraulic fluid in plastic containers | High-hazard | |
Nail polish; up to 2-ounce glass bottles or jars; cartoned | Class IV | |
Nail polish; up to 2-ounce plastic bottles or jars; cartoned | High-hazard (Group A unexpanded) | |
Flammable solids | Except solid combustible metals | High-hazard |
Food products, frozen | In nonwaxed or nonplastic packaging | Class I |
In plastic trays | Class III | |
In waxed or plastic-coated paper packaging | Class II | |
Food products, nonfrozen | Butter (stick or whipped spread) or margarine (up to 50-percent oil) | Class III |
Butter; whipped spread | Class III | |
Dry foods (such as baked goods, candy, cereals, cheese, chocolate, cocoa, coffee, grains, granular sugar, nuts); bagged or cartoned | Class III | |
Foods (such as coffee, fish products, fruit, meat products, nuts, poultry); metal cans | Class I | |
Fruits and vegetables (noncombustible semiliquid); crushed; plastic containers up to 5 gallons | Class I | |
Fruits and vegetables; fresh; wood spacers, nonplastic trays or containers | Class I | |
Margarine; over 50- and up to 80-percent oil | High-hazard (Group A unexpanded) | |
Meat; fresh; no plastic packaging; uncartoned | Class I | |
Meat; fresh; no plastic packaging; cartoned | Class II | |
Meat; fresh; plastic tray | Class III | |
Milk; any container; stored in solid plastic crates | High-hazard (Group A unexpanded) | |
Milk; paper containers, or plastic bottles or jars up to 5 gallons | Class I | |
Salt; bagged | Class I | |
Salt; cartoned | Class II | |
Snack foods (such as potato chips); plasticized aluminum bags; cartoned | High-hazard (Group A unexpanded) | |
Syrup; wooden container | Class II | |
Furniture and bedding | Box spring; standard (minimal plastic materials) | Class III |
Box spring; wrapped in plastic cover | Class IV | |
Furniture and bedding; with foam cushioning | High-hazard (Group A expanded) | |
Furniture; metal (such as file cabinets or desks with minimal plastic trim); cartoned | Class I | |
Furniture; wood (such as doors, windows, cabinets); no plastic coverings or foam cushioning | Class III | |
Furniture; wood; plastic coverings; nonexpanded plastic trim | Class IV | |
Mattress; foam (in finished form) | High-hazard (Group A expanded) | |
Pillows, foam rubber and foam plastics | High-hazard (Group A expanded) | |
Housing materials and appliances | Appliances; major (for example, stoves, refrigerators); no appreciable plastic interior or exterior trim; cartoned | Class II |
Appliances; major (for example, stoves, refrigerators); no appreciable plastic interior or exterior trim; uncartoned | Class I | |
Appliances; no appreciable plastic exterior trim (interior of unit can have appreciable plastic) | Class III | |
Carpet tiles; cartoned | High-hazard (Group A unexpanded) | |
Fiberglass insulation; paper-backed rolls; bagged or unbagged | Class IV | |
Floor coverings; vinyl, stacked tiles | Class IV | |
Floor coverings; vinyl; rolled | High-hazard (Group A unexpanded) | |
Gypsum board | Class I | |
Housing materials (such as sinks, countertops); noncombustible, cartoned or crated | Class II | |
Light fixtures; nonplastic; cartoned | Class II | |
Paint; oil-based; friction-top metal containers; cartoned | Class IV | |
Paint; water-based (latex); friction-top metal containers; cartoned | Class I | |
Paper; asphalt; rolled, horizontal or vertical storage | High-hazard | |
Roofing shingles; asphalt-coated fiberglass | Class III | |
Roofing shingles; asphalt-impregnated felt | Class IV | |
Miscellaneous | Ammunition; small arms and shotgun; cartoned | Class IV |
Charcoal; mineral-spirit impregnated; bagged | High-hazard (Group A expanded) | |
Charcoal; standard (nonmineral-spirit impregnated); bagged | Class III | |
Fertilizers; nitrates; bagged | Class II | |
Fertilizers; phosphates; bagged | Class I | |
Leather hides; baled | Class II | |
Leather; finished products (such as shoes, jackets, gloves, bags, luggage, belts) | Class III | |
Motors; electric | Class I | |
Pallets and flats that are idle; combustible | High-hazard | |
Shock absorbers; metal dust cover | Class II | |
Shock absorbers; plastic dust cover | Class III | |
Skis; wood | Class III | |
Skis; composite materials (such as plastic, fiberglass, foam) | Class IV | |
Tobacco products; cartoned | Class III | |
Toys; stuffed; foam or synthetic | High-hazard (Group A expanded) | |
Transformer; dry or empty (in other words, void of oil) | Class I | |
Noncombustible liquids | Liquids or semiliquids; PET containers greater than 5 gallons having a nominal wall thickness greater than 1/4 inch | Class IV |
Liquids or semiliquids; PET containers up to 5 gallons having a nominal wall thickness less than 1/4 inch | Class I | |
Liquids or semiliquids (such as crushed fruits and vegetables); plastic containers up to 5-gallon capacity | Class I | |
Liquids or semiliquids; plastic (except PET) containers greater than 5-gallon capacity having a nominal wall thickness greater than 1/4 inch | High-hazard (Group A unexpanded) | |
Liquids or semiliquids; plastic (except PET) containers greater than 5-gallon capacity having a nominal wall thickness up to 1/4 inch | Class II | |
Liquids; cardboard drink boxes, plastic coated, wax coated, and/or aluminum lined; uncartoned or on corrugated carton trays with plastic sheeting | Class I | |
Liquids; cardboard drink boxes, plastic coated, wax coated, and/or aluminum lined; stored in plastic containers | High-hazard (Group A unexpanded) | |
Liquids; glass bottles or jars; cartoned | Class I | |
Liquids; less than 5-gallon plastic containers | Class I | |
Liquids; pharmaceuticals (nonflammable); glass bottles or jars; cartoned | Class II | |
Liquids; plastic bottles or jars; stored in open or solid plastic crates | High-hazard (Group A unexpanded) | |
Paper products | Book signatures (paper part of book without hard cover) | Class II |
Cartons (such as cardboard flats); corrugated; partially assembled | Class IV | |
Cartons (such as cardboard flats); corrugated; unassembled in neat piles | Class III | |
Cartons; wax coated, single-walled corrugated | High-hazard (Group A unexpanded) | |
Cellulosic paper products; nonwax coated (such as books, cardboard games, cartoned tissue products, magazines, newspapers, paper cups, paper plates, paper towels, plastic-coated paper food containers, stationary) | Class III | |
Cellulosic paper products; wax coated (such as paper plates, cups); loosely packed; cartoned | High-hazard (Group A unexpanded) | |
Cellulosic paper products; wax coated (such as paper plates, cups); nested; cartoned | Class IV | |
Matches; paper-type; cartoned | Class IV | |
Matches; wooden; cartoned | High-hazard (Group A unexpanded) | |
Rolled; lightweight; in storage racks | Class IV | |
Rolled; medium or heavyweight; in storage racks or onside | Class III | |
Rolled; in horizontal storage or vertical storage that is banded or protected with an approved wrap | Class III | |
Rolled; in vertical storage that is unbanded or not protected with an approved wrap | High-hazard | |
Tissue products; plastic wrapped; cartoned | Class III | |
Tissue products; plastic wrapped; uncartoned | High-hazard (Group A unexpanded) | |
Plastic, rubber | ABS (Acrylonitrile-butadiene-styrene copolymer) | High-hazard (Group A unexpanded) |
Acetal (polyformaldehyde) | High-hazard (Group A unexpanded) | |
Acrylic (polymethyl methacrylate) | High-hazard (Group A unexpanded) | |
Automobile bumpers and dashboards | High-hazard (Group A expanded) | |
Butyl rubber | High-hazard (Group A unexpanded) | |
Cellulose acetate | Class IV (Group B plastic) | |
Cellulose acetate butyrate | High-hazard (Group A unexpanded) | |
Chloroprene rubber | Class IV (Group B plastic) | |
Containers; Nonexpanded plastic gridded or solid; collapsed or nested with no air spaces | High-hazard (Group A unexpanded) | |
ECTFE (ethylene-chlorotrifluoro-ethylene copolymer) | Class IV (Group B plastic) | |
EPDM (ethylene-propylene rubber) | High-hazard (Group A unexpanded) | |
ETFE (ethylene-tetrafluoroethylene copolymer) | Class IV (Group B plastic) | |
Ethyl cellulose | High-hazard (Group A unexpanded) | |
FEP (fluorinated ethylene-propylene copolymer) | Class IV (Group B plastic) | |
FRP (fiberglass-reinforced polyester) | High-hazard (Group A unexpanded) | |
Melamine (melamine formaldehyde) | Class III (Group C plastic) | |
Nitrile rubber (acrylonitrile-butadiene rubber) | High-hazard (Group A unexpanded) | |
Nylon (nylon 6, nylon 6/6) | High-hazard (Group A unexpanded) | |
PCTFE (polychlorotrifluoroethylene) | Class III (Group C plastic) | |
PET (Polyethylene terephthalate-thermoplastic polyester) | High-hazard (Group A unexpanded) | |
Phenolic | Class III (Group C plastic) | |
Plastics; stored in fully closed and solid (no openings) metal containers | Class I | |
Polybutadiene | High-hazard (Group A unexpanded) | |
Polycarbonate | High-hazard (Group A unexpanded) | |
Polyester elastomer | High-hazard (Group A unexpanded) | |
Polyethylene | High-hazard (Group A unexpanded) | |
Polypropylene | High-hazard (Group A unexpanded) | |
Polystyrene; foam products (such as plates, cups) | High-hazard (Group A expanded) | |
Polystyrene; rigid products | High-hazard (Group A unexpanded) | |
Polyurethane | High-hazard (Group A expanded) | |
PTFE (polytetrafluoroethylene) | Class III (Group C plastic) | |
PVC (polyvinyl chloride) products; plasticizer content 20 percent or less | Class III (Group C plastic) | |
PVC (polyvinyl chloride) products; plasticizer content greater than 20 percent | High-hazard (Group A unexpanded) | |
PVC resins; bagged | Class III (Group C plastic) | |
PVDC (polyvinylidene chloride) | Class III (Group C plastic) | |
PVDF (polyvinylidene fluoride) | Class III (Group C plastic) | |
PVF (polyvinyl fluoride) | High-hazard (Group A unexpanded) | |
Pyroxylin | High-hazard | |
Rubber; natural in blocks; cartoned | High-hazard (Group A unexpanded) | |
Rubber; natural; expanded | High-hazard (Group A expanded) | |
Rubber; natural; Nonexpanded | High-hazard (Group A unexpanded) | |
Rubber; synthetic (santoprene) | High-hazard (Group A unexpanded) | |
Rubber tires | High-hazard | |
SAN (styrene acrylonitrile) | High-hazard (Group A unexpanded) | |
SBR (styrene-butadiene rubber) | High-hazard (Group A unexpanded) | |
Silicone rubber | Class IV (Group B plastic) | |
Urea (urea formaldehyde) | Class III (Group C plastic) | |
Plastic containers | Bottles or jars greater than 1 gallon containing noncombustible solids | High-hazard (Group A unexpanded) |
Bottles or jars up to 1 gallon containing noncombustible solids | High-hazard (Group A unexpanded) | |
Powders, pills | Pharmaceutical pills; glass bottles or jars; cartoned | Class II |
Pharmaceuticals pills; plastic bottles or jars; cartoned | Class IV | |
Polyvinyl alcohol (PVA) resins; bagged | Class IV | |
Powders; combustible (ordinary—such as sugar or flour); free-flowing; bagged | Class II | |
Powders; noncombustible free-flowing powdered or granular materials (such as cement, calcium chloride, clay, iron oxide, sodium chloride, sodium silicate); bagged | Class I | |
Powders; noncombustible; glass bottles or jars; cartoned | Class I | |
Powders; noncombustible; PET bottles or jars | Class II | |
Powders; noncombustible; plastic (other than PET) bottles or jars; uncartoned | High-hazard (Group A unexpanded) | |
Powders; noncombustible; plastic bottles or jars greater than 1-gallon capacity | High-hazard (Group A unexpanded) | |
Powders; noncombustible; plastic bottles or jars up to 1-gallon capacity; cartoned | Class IV | |
Textile materials and products | Cloth; natural fibers; baled | Class III |
Cloth; synthetic cloth | Class IV | |
Clothing; natural fibers (such as wool, cotton) and viscose | Class III | |
Cotton; cartoned | Class III | |
Diapers; cotton or linen | Class III | |
Diapers; plastic or nonwoven fabric; cartoned | Class IV | |
Diapers; plastic or nonwoven fabric; plastic-wrapped; uncartoned | High-hazard (Group A unexpanded) | |
Fabric; rayon and nylon | Class IV | |
Fabric; synthetic (except rayon and nylon); greater than 50/50 blend | High-hazard (Group A unexpanded) | |
Fabric; synthetic (except rayon and nylon); up to 50/50 blend | Class III | |
Fabric; vinyl-coated (such as tablecloth); cartoned | High-hazard (Group A unexpanded) | |
Fibers; rayon and nylon; baled | Class IV | |
Fibers; synthetic (except rayon and nylon); baled | High-hazard (Group A unexpanded) | |
Thread or yarn; rayon and nylon; wood or paper spools | Class IV | |
Thread or yarn; rayon or nylon; plastic spools | High-hazard (Group A unexpanded) | |
Thread or yarn; synthetic (except rayon and nylon); greater than 50/50 blend; paper or wood spools | Class IV | |
Thread or yarn; synthetic (except rayon and nylon); greater than 50/50 blend; plastic spools | High-hazard (Group A unexpanded) | |
Thread or yarn; synthetic (except rayon and nylon); up to 50/50 blend; plastic spools | High-hazard (Group A unexpanded) | |
Thread or yarn; synthetic (except rayon and nylon); up to 50/50 blend; wood or paper spools | Class III | |
Wax products | Candles | High-hazard (Group A expanded) |
Paraffin or petroleum wax; blocks | High-hazard (Group A expanded) | |
Wire, cable, spools | Spools; plastic; empty | High-hazard (Group A unexpanded) |
Spools; wood; empty | Class III | |
Wire or cable; PVC insulated; metal or wood spools | Class II | |
Wire or cable; PVC insulated; plastic spools | Class IV | |
Wire; bare; metal spools; uncartoned | Class I | |
Wire; bare; metal spools; cartoned | Class II | |
Wire; bare; plastic spools; cartoned | Class IV | |
Wire; bare; plastic spools; uncartoned | High-hazard (Group A unexpanded) | |
Wire; bare; wood or cardboard spools | Class II | |
Wood products | Wood patterns | Class IV |
Wood products (such as fiberboard, lumber, particle board, plywood, pressboard with smooth ends and edges); bundled solid blocks | Class II | |
Wood products (such as fiberboard, lumber, particle board, plywood, pressboard with smooth ends and edges); unbundled or nonsolid blocks | Class III | |
Wood products (such as toothpicks, clothespins and hangers) | Class III |
For SI: 1 inch = 25.4 mm, 1 gallon = 3.8 L, 1 ounce = 29.57 ml.
Figures 3203.9(1) and 3203.9(2) shall be used to determine the commodity classification based on the quantity of Group A plastics in the following situations:
- The product is not listed in Table 3203.8 and contains Group A plastics.
- The commodity contains Group A plastics and is not classified as high-hazard in Table 3203.8.
- The product listing in Table 3203.8 does not specifically include packaging, and the packaging material includes Group A plastics.
EVALUATION BY VOLUME OF GROUP A EXPANDED PLASTICS IN MIXED COMMODITIESa, b
- This figure is used to determine the commodity classification of a mixed commodity with Group A plastics in a package or carton, or on a pallet.
- The following is an example of how to apply Figure 3203.9(1): A pallet load consists of a Class III commodity with components of unexpanded Group A plastic and packing material of expanded Group A plastic. Using Equation 32-1, the weight of unexpanded Group A plastic is 5 percent. Using Equation 32-2, the volume of expanded Group A plastic is 15 percent. This commodity is classified as a Class IV commodity. If the volume of the expanded Group A plastic is increased to 20 percent, the classification changes to a high-hazard commodity. Compare this result with the result from Figure 3203.9(2), and the highest classification will apply. Where the load is stored on a plastic pallet, the requirements in Section 3203.10 apply.
EVALUATION BY WEIGHT OF GROUP A EXPANDED PLASTICS IN MIXED COMMODITIESa, b, c
- This figure is used to determine the commodity classification of a mixed commodity with Group A plastics in a package or carton, or on a pallet.
- The results from this figure must be compared to the results from Figure 3203.9(1). The highest classification will apply.
- The following is an example of how to apply Figure 3203.9(2): A pallet load consists of a Class III commodity with components of unexpanded Group A plastic and packing material of expanded Group A plastic. Using Equation 32-1, the weight of unexpanded Group A plastic is 5 percent. Using Equation 32-3, the weight of expanded Group A plastic is 6 percent. This commodity is classified as a high-hazard commodity. Where the load is stored on a plastic pallet, the requirements in Section 3203.10 apply.
The percentage of Group A plastics determined in accordance with Section 3203.9.2 shall be used in Figures 3203.9(1) and 3203.9(2). Results from Figure 3203.9(1) must be compared to results from Figure 3203.9(2) and the commodity will be classified with the highest commodity classification.
Figures 3203.9(1) and 3203.9(2) shall not be used to reduce the commodity classification shown in Table 3203.8.
The pallet, if any, shall not be included when measuring the weight of the commodity (WPU or WPE) or the volume of the commodity (VPE). The pallet, if any, shall be included when measuring the weight of the entire load (WL) or the volume of the entire load (VL).
Exception: Where noncombustible pallets are used, the pallets shall not be included in the volume and weight calculations.
The percentage by weight of Group A unexpanded plastics in the load shall be calculated in accordance with Equation 32-1.
The percentage by volume of Group A expanded plastics in the load shall be calculated in accordance with Equation 32-2.
The percentage by weight of Group A expanded plastics in the load shall be calculated in accordance with Equation 32-3.
(Equation 32-1)
where:
PWU = Percentage by weight of Group A unexpanded plastic.
WPU = Weight of Group A unexpanded plastic in the commodity, not including the weight of the pallet, if any.
WL = Weight of the entire load, including the weight of the pallet, if any.
(Equation 32-2)
where:
PVE = Percentage by volume of Group A expanded plastic.
VPE = Volume of Group A expanded plastic in the commodity, not including the volume of the pallet, if any.
VL = Volume of the entire load, including the volume of the pallet, if any.
(Equation 32-3)
where:
PWE = Percentage by weight of Group A expanded plastic.
WPE = Weight of Group A expanded plastic in the commodity, not including the weight of the pallet, if any.
WL = Weight of the entire load, including the weight of the pallet, if any.
The commodity classification determined in Section 3203.8 or 3203.9 shall be modified in accordance with Sections 3203.10.1 through 3203.10.3 where plastic pallets are used.
Exception: The commodity classification is not modified where any of the following conditions occur:
- Group A plastic commodities are stored on plastic pallets.
- Sprinkler protection consists of sprinklers at the ceiling only, using sprinklers with a minimum K-factor of K-16.8 (240).
- The plastic pallets are listed and labeled in accordance with Section 3206.4.1.1.
Where required by Table 3206.2, fire detection systems, smoke and heat removal and automatic sprinkler design densities shall be provided to protect the high-piled storage area.
COMMODITY
CLASS
|
SIZE OF HIGH-PILED
STORAGE AREAa
(square feet)
(see Sections 3206.2 and
3206.3) |
ALL STORAGE AREAS | SOLID-PILED STORAGE, SHELF
STORAGE AND PALLETIZED STORAGE
(see Section 3207.3) |
|||||
Automatic fire-
extinguishing
system
(see Section 3206.4)
|
Fire detection (see Section 3206.5) | Fire
department
access doors
(see Section 3206.7)
|
Smoke and
heat removal
(see Section 3206.8) |
Maximum pile
dimensionc
(feet) |
Maximum
permissible
storage
heightd
(feet) |
Maximum
pile volume
(cubic feet) |
||
I-IV | 0—500 | Not
Requireda
|
Not
Required
|
Not
Required
|
Not
Required
|
Not
Required
|
Not
Required
|
Not
Required
|
501—2,500 | Not
Requireda
|
Yesg | Not
Required
|
Not
Required
|
120 | 40 | 100,000 | |
2,501—12,000
Open to the public
|
Yes | Not
Required
|
Not
Required
|
Not
Required
|
120 | 40 | 400,000 | |
2,501—12,000
Not open to the public
(Option 1) |
Yes | Not
Required
|
Not
Required
|
Not
Required
|
120 | 40 | 400,000 | |
2,501—12,000 N
ot open to the public
(Option 2) |
Not
Requireda
|
Yes | Yes | Yesh, i | 120 | 30e | 200,000 | |
12,001—500,000 | Yes | Not
Required
|
Yes | Yesh, i | 120 | 40 | 400,000 | |
Greater than
500,000f
|
Yes | Not
Required
|
Yes | Yesh, i | 120 | 40 | 400,000 | |
High
hazard
|
0—500 | Not
Requireda
|
Not
Required
|
Not
Required
|
Not
Required
|
60 | Not
Required
|
Not
Required
|
501—2,500
Open to the public
|
Yes | Not
Required
|
Not
Required
|
Not
Required
|
60 | 30 | 75,000 | |
501—2,500
Not open to the public
(Option 1) |
Yes | Not
Required
|
Not
Required
|
Not
Required
|
60 | 30 | 75,000 | |
501—2,500
Not open to the public
(Option 2) |
Not
Requireda
|
Yesg | Yes | Yesh, i | 60 | 20 | 50,000 | |
2,501—300,000 | Yes | Not
Required
|
Yes | Yesh, i | 60 | 30 | 75,000 | |
Greater than 300,000f | Yes | Not
Required
|
Yes | Yesh, i | 60 | 30 | 75,000 |
For SI: 1 foot = 304.8 mm, 1 cubic foot = 0.02832 m3 , 1 square foot = 0.0929 m2.
- Where automatic sprinklers are required for reasons other than those in Chapter 32, the portion of the sprinkler system protecting the high-piled storage area shall be designed and installed in accordance with Sections 3207 and 3208.
- For aisles, see Section 3206.10.
- Piles shall be separated by aisles complying with Section 3206.10.
- For storage in excess of the height indicated, special fire protection shall be provided in accordance with Note f where required by the fire code official. See Chapters 51 and 57 for special limitations for aerosols and flammable and combustible liquids, respectively.
- For storage exceeding 30 feet in height, Option 1 shall be used.
- Special fire protection provisions including, but not limited to, fire protection of exposed steel columns; increased sprinkler density; additional in-rack sprinklers, without associated reductions in ceiling sprinkler density; or additional fire department hose connections shall be provided where required by the fire code official.
- Not required where an automatic fire-extinguishing system is designed and installed to protect the high-piled storage area in accordance with Sections 3207 and 3208.
- Not required where storage areas are protected by either early suppression fast response (ESFR) sprinkler systems or control mode special application sprinklers with a response time index of 50 (m • s)1/2 or less that are listed to control a fire in the stored commodities with 12 or fewer sprinklers, installed in accordance with NFPA 13.
- Not required in frozen food warehouses used solely for storage of Class I and II commodities where protected by an approved automatic sprinkler system.
The size of each high-piled storage area shall include the footprint of the actual high-piled storage racks, shelves or piles and the following aisles:
- Interior aisles within the footprint of the storage area.
- An aisle around the perimeter of the footprint with a minimum width as required in Section 3206.10.1 or the dimension to a wall or full height wall, whichever is less.
Where a building contains multiple high-piled storage areas, the aggregate of all high-piled storage areas shall be used for the application of Table 3206.2 unless the high-piled storage areas are separated in accordance with one of the following:
- High-piled storage areas separated by fire barriers with a minimum fire-resistance-rating of 1 hour constructed in accordance with Section 707 of the International Building Code.
- In buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1, high-piled storage areas separated by 100 feet (30 480 mm) or more. The area providing the separation shall not contain high-piled combustible storage.
High-piled storage areas classified as Class I through IV not separated from high-piled storage areas classified as high hazard shall utilize the aggregate of all high-piled storage areas as high hazard for the purposes of the application of Table 3206.2. Multiple class high-piled storage areas meeting the separation requirements in Section 3206.3.2 shall be considered as separated. The fire safety features in Table 3206.2 shall be extended beyond the higher-hazard storage area in accordance with Section 3206.2.1.
Exception: Multiple class high-piled storage areas do not need to be separated where in accordance with Section 3204.2.
Fire apparatus access roads in accordance with Section 503 shall be provided within 150 feet (45 720 mm) of all portions of the exterior walls of buildings used for high-piled storage.
Exception: Where fire apparatus access roads cannot be installed because of topography, railways, waterways, nonnegotiable grades or other similar conditions, the fire code official is authorized to require additional fire protection.
Fire department access doors are not required in an exterior wall that does not face a fire apparatus access road provided that all of the following conditions occur:
- The opposite exterior wall faces a fire apparatus access road.
- The opposite exterior wall is provided with fire department access doors.
- The entire interior surface of the exterior wall is less than 150 feet (45 720 mm) away from a fire department access door.
- The building is equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1.
Fire department access doors shall be labeled on the exterior side with the following sign or other approved sign:
FIRE DEPARTMENT ACCESS DOOR
DO NOT BLOCK
The lettering shall be in a contrasting color to the background. Letters shall have a minimum height of 2 inches (51 mm) with a minimum stroke of 3/8 inch (10 mm).
The required fire department access doors shall be distributed such that the lineal distance between adjacent fire department access doors does not exceed 125 feet (38 100 mm) measured center to center.
Exception: The linear distance between adjacent access doors shall not exceed 200 feet (60 960 mm) in existing buildings where change in occupancy is not proposed.
Aisles providing access to exits and fire department access doors shall be provided in high-piled storage areas exceeding 500 square feet (46 m2), in accordance with Sections 3206.10.1 through 3206.10.3. Aisles separating storage piles or racks shall comply with NFPA 13. Aisles shall comply with Chapter 10.
Exception: Where aisles are precluded by rack storage systems, alternate methods of access and protection are allowed where approved.
Aisle width shall be in accordance with Sections 3206.10.1.1 and 3206.10.1.2.
Exceptions:
- Aisles crossing rack structures or storage piles, that are used only for employee access, shall be not less than 24 inches (610 mm) wide.
- Aisles separating shelves classified as shelf storage shall be not less than 30 inches (762 mm) wide.
Aisles in sprinklered buildings shall be not less than 44 inches (1118 mm) wide. Aisles shall be not less than 96 inches (2438 mm) wide in high-piled storage areas exceeding 2,500 square feet (232 m2) in area, that are accessible to the public and designated to contain high-hazard commodities.
Aisles shall be not less than 96 inches (2438 mm) wide in areas open to the public where mechanical stocking methods are used.
Exceptions:
- Aisles in high-piled storage areas exceeding 2,500 square feet (232 m2) in area, that are open to the public and designated to contain high-hazard commodities, and that are protected by a sprinkler system designed for multiple-row racks of high-hazard commodities, shall be not less than 44 inches (1118 mm) wide.
- Aisles that are in high-piled storage areas exceeding 2,500 square feet (232 m2) in area, not open to the public and protected by a sprinkler system designed for multiple-row racks, shall be not less than 24 inches (610 mm) wide.
Dead-end aisles shall not exceed 20 feet (6096 mm) in length in Group M occupancies. Dead-end aisles shall not exceed 50 feet (15 240 mm) in length in all other occupancies.
Exception: Dead-end aisles are not limited where the length of the dead-end aisle is less than 2.5 times the least width of the dead-end aisle.
Racks with solid shelving having an area greater than 20 square feet (1.9 m2), measured between approved flue spaces at all four edges of the shelf, shall be in accordance with this section.
Exceptions:
- Racks with mesh, grated, slatted or similar shelves having uniform openings not more than 6 inches (152 mm) apart, comprising not less than 50 percent of the overall shelf area, and with approved flue spaces are allowed to be treated as racks without solid shelves.
- Racks used for the storage of combustible paper records, with solid shelving, shall be in accordance with NFPA 13.
Rack storage areas protected with an automatic sprinkler system shall be provided with flue spaces in accordance with Table 3208.3. Required flue spaces shall be maintained.
REQUIRED FLUE SPACES FOR RACK STORAGE
RACK CONFIGURATION | FLUE DESIGN | AUTOMATIC SPRINKLER PROTECTION | |||
Sprinklers at the ceiling with or without minimum in-rack sprinklers | In-rack sprinklers at every tier | ||||
Storage height ≤ 25 feet | Storage height > 25 feet | Any height | |||
Single-row rack | Transverse flue space | Sizeb | 3 inches | 3 inches | Not required |
Vertically aligned | Not required | Yes | Not required | ||
Longitudinal flue space | Not required | Not required | Not required | ||
Double-row rack (Option 1) | Transverse flue space | Sizeb | 6 inchesa | 3 inches | Not required |
Vertically aligned | Not required | Yes | Not required | ||
Longitudinal flue space | Not required | 6 inches | Not required | ||
Double-row rack (Option 2) | Transverse flue space | Sizeb | 3 inches | 6 inches | Not required |
Vertically aligned | Not required | Yes | Not required | ||
Longitudinal flue space | 6 inches | Not required | Not required | ||
Multiple-row rack | Transverse flue space | Sizeb | 6 inches | 6 inches | Not required |
Vertically aligned | Not required | Yes | Not required | ||
Longitudinal flue space | Not required | Not required | Not required |
For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm.
- Three-inch transverse flue spaces shall be provided not less than every 10 feet where ESFR sprinkler protection is provided.
- Random variations are allowed, provided that the configuration does not obstruct water penetration.
High-piled storage areas having greater than 500 square feet (46 m2) of carousel storage shall be provided with automatic shutdown in accordance with one of the following:
- An automatic smoke detection system installed in accordance with Section 907, with coverage extending 15 feet (4575 mm) in all directions beyond unenclosed carousel storage systems and that sounds a local alarm at the operator's station and stops the carousel storage system upon the activation of a single detector.
- An automatic smoke detection system installed in accordance with Section 907 and within enclosed carousel storage systems, that sounds a local alarm at the operator's station and stops the carousel storage system upon the activation of a single detector.
- A single dead-man-type control switch that allows the operation of the carousel storage system only when the operator is present. The switch shall be in the same room as the carousel storage system and located to provide for observation of the carousel system.