Simpson Strong-Tie connectors are code-required in seismic zones — not optional

Per IRC R602.10 and IBC Section 2308, metal connectors (hurricane ties, hold-downs, post bases) are required in Seismic Design Categories D, E, and F. Toe-nailing alone does not meet lateral load requirements. Even in non-seismic zones, connectors prevent uplift failures in high-wind events. Insurance adjusters check for connectors first when denying wind damage claims.