What is the minimum size for shelter holes according to safety regulations?

The minimum size for shelter holes according to safety regulations is determined by the need for workers to enter and exit safely, as well as to ensure adequate room for any necessary equipment or materials they might need while in the shelter. The correct answer specifies dimensions of 5' deep, 4' wide, and an appropriate height for entry, which aligns with guidelines intended to provide both safety and practicality in various work environments.

These dimensions help to prevent potential hazards, such as collapse or restricted movement, and allow workers to perform their tasks without undue risk. The depth ensures that workers remain out of the way of any potential falling debris from above, while the width and height make it feasible for workers to enter and exit comfortably. This comprehensive approach to sizing ensures that safety regulations are met effectively.