What is the maximum number of unfinished bolting or welding stories allowed above the foundation or uppermost permanently secured floor?

The maximum number of unfinished bolting or welding stories allowed above the foundation or uppermost permanently secured floor is indeed 4 stories or 48 feet. This standard is primarily established to ensure safety and structural integrity during construction.

When a building is under construction, there are specific guidelines regarding how high unfinished stories can be built. Limiting the height to 4 stories or 48 feet helps manage risks related to stability and safety for workers and the structure itself. It prevents excessive upward construction without adequate support or safety measures, which could lead to hazards such as falls or structural failure.

This guideline reflects a balance between the need for efficiency in construction and the paramount importance of safety regulations that protect both workers and the eventual occupants of the building.