What is the maximum height that the horizontal guard railing may exceed?

The correct maximum height that a horizontal guard railing may exceed is 42 inches. This height is commonly established in safety regulations to prevent falls and ensure maximum protection for individuals working near elevated platforms or edges. Guard rails are essential safety features designed to provide a physical barrier, and their height is determined based on standards that take into account the risk of falls and the physical capabilities of individuals in the workspace.

A maximum height of 42 inches is typically recognized as appropriate because it offers sufficient protection without being excessively difficult to maintain or navigate for workers. This height aligns with guidelines from safety organizations and occupational health standards that aim to minimize workplace injuries. Notably, exceeding this height can create challenges in maintaining effectiveness as a protective barrier, potentially undermining its intended safety function. Therefore, the decision to set the maximum height at 42 inches balances safety, practicality, and compliance with established regulations in the field of occupational safety and health.