What should always be done when entering a burning structure?

Conducting a size-up is fundamental when entering a burning structure, as it allows firefighters to assess the current conditions, potential hazards, and overall risks present in the environment. This step involves evaluating factors such as fire location, building layout, smoke conditions, temperature, and the presence of occupants or other hazards.

By performing a size-up, firefighters can make informed decisions regarding their tactics and strategies for suppression, rescue, or evacuation. This assessment not only enhances personal safety but also increases the likelihood of successfully completing the mission. Understanding the dynamics of the fire and structure helps in anticipating the behavior of the fire and developing an effective action plan.

While checking for civilian presence, turning off utilities, and establishing communication with dispatch are important actions in fire response protocols, they are secondary to the immediate need for assessing the scene. A size-up ensures that responders are informed and prepared before taking further action.