Which action should be taken first before forcing a door?

Before attempting to force a door, checking for the presence of a window adjacent to the door is a critical first step, as it can provide an alternative means of entry. If a firefighter notices a window next to the door, they might be able to access the building more effectively through that opening. This approach minimizes the force needed on the door, potentially making entry quicker and reducing the risk of damage to the door and frame.

Accessing through a window can also allow for a visual assessment of conditions inside the building, helping to determine the need for rapid action, which is crucial in emergency situations. This assessment can include looking for smoke or fire, as well as understanding the layout and any potential hazards before forcing the door. Thus, considering adjacent windows prioritizes safety, efficiency, and the overall success of the operation.