For a jack rafter nailed to a hip rafter, what is the minimum number of 16 D common nails required?

When fastening a jack rafter to a hip rafter, building codes typically require that the connection be secure enough to handle the stresses placed on it during use. The use of two 16 D common nails provides a reliable means of ensuring that the jack rafter is properly anchored to the hip rafter, facilitating strength and stability in the roof structure.

Two nails are generally sufficient to create an effective connection, allowing for proper load distribution and reducing the risk of failure at that joint over time. This approach takes into consideration both structural integrity and efficiency in construction. Using fewer than two nails may not provide adequate holding power, compromising the overall stability of the roofing system.

While three or four nails could potentially provide extra security, the code has established two as the minimum necessary for most situations involving jack and hip rafters, aligning with best practices for efficient yet robust construction methods.