premier fire consulting

Commodity Classification

Through our standard "Commodity Description" form and via a survey of your products, Premier Fire Consulting LLC, will be able to establish the commodity classification as out lined in chapter 23 of the California Fire Code.

This will allow us to lay the basis of design for the proper protection of your commodities being stored.

Commodity classification is determined by the type and amounts of materials (i.e. Metal, paper, plastics, wood, etc.) involved in a product and its primary packaging. However, in a storage or warehousing situation it is also affected by such factors as the material of the main storage or shipping container, the amount of air space and the location of the more hazardous materials within the container.

Most general types of common commodities are classifed as the Class I, II, III or IV. Commodities presenting special fire hazards beyond class I, II, III or IV, and most Group A plastics will be considered high hazard commodities. Plastics, elastomers, and rubber are placed into three aditional categories to assist in defining fire fighting hazards and risks.

Need guidance from an experise?

  • Fire severity is strongly influenced by storage height
    • HRR for standard plastic commodity is redirectly proportional to the number of storage teirs (≤ 6) in the first stage (2-3).
  • In-Rack sprinkler protection it is always required for storage over 25 feet high
  • Plastic commodity storage heights above 35 feet are almost exclusively dependent on in-rack protection.
  • In-rack sprinkler placement highly specific to fuel type configuration.
  • Ceiling sprinkler densities influenced by storage clearance.
  • Designs become solutions through validation