In terms of support, which is a requirement for guardrails according to the North Carolina Building Code?

• A. Must be secured to the floor
• B. Must withstand a force of at least 200 pounds
• C. Must be made from solid oak
• D. Must be adjustable in height

Answer: (B)

Guardrails are an essential safety feature in construction, serving to prevent falls from elevated surfaces. According to the North Carolina Building Code, a key requirement is that guardrails must withstand a force of at least 200 pounds. This ensures that the guardrail can resist the pressure and stress that might be applied to it, whether from leaning, pushing, or accidental force. The capacity to handle this level of force is critical for maintaining safety in areas like balconies, staircases, and mezzanines.

While other choices present various features that could seem significant, they do not meet the specific code requirements for guard rails. For example, securing guardrails to the floor can enhance stability, but it is not the primary requirement outlined in the code. Using solid oak for construction would not necessarily meet safety standards, as materials can vary widely and still provide adequate strength. Similarly, adjustability in height is not a stipulated necessity within the code, as guardrails are generally designed to meet standard height requirements to ensure efficacy, not to change height dynamically. Thus, the requirement to withstand a force of at least 200 pounds is crucial and foundational to ensuring guardrails perform their protective role effectively.