Coastal and Floodplain Construction Inspector's Practice Exam

What is the minimum size of nails required for attaching continuous lateral braces to each rafter?

1. 5d nails

2. 8d nails

3. 10d nails

4. 12d nails

The correct answer is: 10d nails

The correct choice indicates that 10d nails are specified as the minimum size for attaching continuous lateral braces to each rafter. This is typically based on industry standards and construction codes that ensure the structural integrity of the connections in a framework. Using 10d nails provides adequate strength and holding power for the lateral braces, which are crucial in maintaining stability and preventing lateral movement in roof structures. The use of nails of this size ensures that the connection between the brace and the rafter can adequately resist forces that might be applied during strong winds or other conditions that could cause structural shifts. In contrast, smaller nail sizes, like 5d or 8d, may not offer the required strength and durability for this application, potentially leading to connection failures. On the other hand, while 12d nails are stronger and longer, they are generally unnecessary for this purpose and could complicate the construction process without providing significant additional benefits. Thus, 10d nails strike a balance between sufficient strength and practicality for securing lateral braces to rafters.