What hazard does inwardly converging walls present in confined spaces?

Inwardly converging walls present a serious hazard because they can create a situation where an entrant may become trapped. When the walls of a confined space taper inward, there is a risk that an individual who enters the space may find it increasingly difficult to exit, especially if the condition of the space changes or if there is a disturbance. This trapping can occur due to the physical shape of the space, which may limit the movement and escape routes available to workers.

The design of confined spaces with inwardly converging walls can also lead to a buildup of hazardous materials or conditions, further complicating the exit process. Understanding this hazard is crucial for ensuring the safety of workers who must enter such spaces. Recognizing the potential for entrapment emphasizes the need for proper training, monitoring, and rescue planning when working in confined spaces with this characteristic.