Summary: The Standard for Cold-Foremd Steel Framing - Header Design (AISI S212-07) is aimed at giving design professionals the tools they need to design headers over door and window openings in buildings. ASIS S212-07 (Header) reflects the appropriate design procedures for back-to-back headers, box headers, and L-headers subject to gravity loads or wind uplift loads. This Technical Note provides additional recommendations and design examples intended to augment AISI S212-07 (Header).
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