What should firefighters do before entering a structure for firefighting?

Performing a size-up of the situation before entering a structure is crucial for firefighters as it involves assessing the environment and hazards related to the fire. This process allows firefighters to gather vital information about the scene, including the size of the building, occupancy type, potential hazards, fire progression, and structural integrity. With this information, firefighters can make informed decisions about their strategy and tactics for combating the fire while ensuring their safety and the safety of any occupants.

Understanding the conditions before entry can lead to better operational effectiveness, enable the identification of the safest and most effective entry points, and help the team establish a situational awareness that is essential for successful firefighting. These initial observations significantly impact the safety and outcome of fire operations.