What is the point load requirement for guard rails in residential construction?

In residential construction, the point load requirement for guardrails is set to ensure safety and stability. The correct answer is based on the International Building Code (IBC) which stipulates that guardrails must be designed to withstand a concentrated load of 200 pounds applied in any direction at any point along the top rail. This requirement is crucial in preventing failure under typical use conditions where individuals may lean against or exert force on the guardrail.

The requirement of 200 pounds ensures that guardrails can adequately protect occupants from falls, accounting for various scenarios such as children playing near the edge or adults leaning over to interact with others. By specifying this load, the code aims to provide a minimum safety standard that can help prevent accidents and injuries in residential environments.