What characteristic defines open plan commercial structures like warehouses?

Open plan commercial structures like warehouses are typically characterized by high fuel loads and the absence of physical barriers. This characteristic stems from the layout and design of such spaces, which often feature large, open areas with minimal partitions. The high fuel loads are the result of the presence of various materials and goods stored within these settings, which can range from pallets and boxes to machinery and equipment. The lack of physical barriers allows for quick fire spread, as there are few obstacles to slow down or contain the fire within a specific area.

By understanding these characteristics, firefighters can better assess the potential hazards and develop strategies for firefighting operations within these environments. Recognizing that these structures can offer fewer constraints can help inform decisions about ventilation, access, and fire control techniques during an incident.