How does the code affect deck load requirements?

The correct answer highlights that decks must be required to support a minimum of 40 pounds per square foot. This requirement is rooted in the North Carolina Residential Code, which specifies load requirements to ensure safety and structural integrity. The 40 pounds per square foot is designed to accommodate not only the weight of the deck itself but also the additional load from furniture, occupants, and any other items placed on the deck.

This specific load requirement is essential because it provides a consistent standard that helps to safeguard against structural failure during use. By ensuring that decks can support heavier loads, the code helps to prevent accidents and injuries that could result from collapsing structures. Furthermore, adherence to this requirement is crucial for avoiding legal liabilities and insurance issues for homeowners and builders.

In comparison, the other options do not align with the code. Decks being rated for only 20 pounds per square foot would be insufficient for typical use, which often exceeds that load. Suggesting that load requirements do not apply to detached decks is misleading, as all decks must meet safety standards regardless of their attachment to a structure. Finally, stating that decks must be built according to homeowner preference fails to recognize that safety codes like this are in place to protect residents and visitors, prioritizing safety over personal choice.