• Oct 22, 2025 allowable deflection for aluminum plate rds specify various allowable deflection limits based on the application: Building and Structural Design: Typically, maximum deflection is limited to L/240 to L/360 of the span length (L). For example, for a span of 120 inches, maximum deflection would be between 0.33 inches (L/360) and 0.5 inches By Dr. Israel King
