What is the required liquid-tight height for the bottom of a flammable liquids cabinet?

The correct required liquid-tight height for the bottom of a flammable liquids cabinet is 4 inches. This specification is in place to ensure that any spills within the cabinet can be contained effectively, providing an added level of safety when storing flammable liquids. The 4-inch height allows for adequate containment of liquid should a leak or spill occur, preventing it from escaping and potentially causing a fire hazard.

Understandably, it might be tempting to consider lower heights for easier access; however, such heights do not provide the necessary containment required for safety regulations. The purpose of these requirements is rooted in the need to mitigate risk in environments where flammable substances are present. Therefore, while a 2-inch height might seem practical or convenient, it ultimately fails to fulfill the safety standards set forth for flammable liquids storage.