What tool is commonly used for spreading gaps in doors and windows during forced entry?

The pry bar is commonly used for spreading gaps in doors and windows during forced entry because of its design and functionality. This tool is specifically engineered to apply leverage, allowing firefighters to create the necessary openings to gain access to a structure. The flat, sturdy end of the pry bar can be inserted into the seams of a door or window, and by applying pressure, it effectively forces the frame apart, making it easier to open the entry point.

In scenarios requiring forced entry, rapid access is crucial, and the pry bar's ability to create sufficient space with minimum damage is vital for both safety and efficiency. Its lightweight nature also allows firefighters to carry and use it easily while wearing their protective gear. Other tools, such as a wrench or a chainsaw, while useful in various situations, do not serve the specific purpose of spreading gaps in the same efficient manner as a pry bar does. Similarly, a key is not applicable in forced entry situations as it requires an existing lock mechanism to be functional.