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Your ICC-ES report lists two different holding values, ASD and LRFD. What do these two acronyms stand for?


Our ICC-ES report ESR 3135 refers to two methods of calculating the strength of a fastener in steel. ASD (Allowable Strength Design) and LRFD (Load & Resistance Factor Design). Both ASD and LRFD are structural design terms and are used by structural engineers to determine allowable loads under different structural design criteria.