North Carolina Building Contractor License Practice Exam

What is the minimum length of nails connecting laminations in mechanically laminated decking?

1. 12 inches

2. 18 inches

3. 24 inches

4. 30 inches

The correct answer is: 18 inches

The minimum length of nails connecting laminations in mechanically laminated decking is vital for ensuring the structural integrity and performance of the decking. Using nails of the specified length helps ensure that the connection is strong enough to withstand the loads and stresses that the decking may encounter. In this context, 18 inches is recognized as the appropriate minimum length. This length provides sufficient anchoring within the wood material to create secure and durable connections between the laminations. Proper nail length is essential for preventing delamination and maintaining the overall strength of the structural elements in construction. The other lengths provided, such as 12 inches, 24 inches, and 30 inches, do not meet the established guidelines for mechanical lamination, leading to potential issues with the connections' effectiveness and the overall safety of the structure. The choice of 18 inches aligns with industry standards and best practices for constructing laminated decking, emphasizing both safety and performance.