North Carolina Building Contractor License Practice Exam

What is the maximum height for a stack of masonry blocks?

1. 10ft

2. 15ft

3. 20ft

4. 25ft

The correct answer is: 20ft

The maximum height for a stack of masonry blocks is determined by various standards that ensure safety and structural integrity during construction. A height of 20 feet is established as a guideline that addresses concerns such as stability and the weight load of masonry materials. This threshold is crucial because as the height increases, the risk of instability or failure of the stack increases due to factors including wind load, settling, and the potential for shifting or collapse. While other heights, such as 10 ft, 15 ft, or 25 ft, might be reasonable in different contexts, the 20 ft limit is recognized for adequately managing these risks in typical masonry practices. Understanding this limit helps ensure that construction practices conform to safety standards and codes, ultimately protecting workers and the integrity of the structures being built. It's important to consult local building codes and regulations, as they may have specific requirements that apply in different scenarios.