North Carolina Building Contractor License Practice Exam

What is the minimum thickness of a masonry bearing wall for structures with more than one story?

1. 8 inches

2. 6 inches

3. 4.5 inches

4. 10 inches

The correct answer is: 4.5 inches

The minimum thickness of a masonry bearing wall for structures with more than one story is set at 4.5 inches. This requirement is typically grounded in building codes that ensure structural integrity and safety, particularly in multi-story buildings where additional loads and stresses are present. The thickness specification considers various factors, such as the weight of the walls themselves, the weight of the floors they support, and the overall design load. A thickness of 4.5 inches is sufficient to provide the necessary strength and stability for bearing walls in these types of structures while also allowing for practical construction methods. Understanding this requirement is essential for anyone preparing for the North Carolina Building Contractor License because it reflects the standards that contractors must adhere to in ensuring the structural safety and compliance of their projects.