AISI Design Resources Primarily Focus On Cold-Formed Steel. AISI is an American National Standards Institute (ANSI)--accredited developer of American National Standards. These publications serve as a basis for cold-formed steel design standards used throughout the world. This section includes information on AISI design guides and manuals, standards, research reports and papers and articles. Access to additional cold-formed steel design aids is included. Links to design resources for cold-formed steel framing, structural steel framing, metal building systems, steel joists, steel deck, and metal roof and wall systems are available in the Build Using Steel section. Individual project inquiries can be directed to the Steel Hotline via our Contact Us page.