Updated Standard for Residential Construction
From The American Iron and Steel InstituteThe American Iron and Steel Institute has published AISI S230-07 w/S2-08, the Standard for Cold-Formed Steel Framing—Prescriptive Method for One and Two Family Dwellings, 2007 Edition With Supplement 2. Supplement 2 was developed in 2008 to revise and clarify certain wall bracing provisions. The full document, AISI S230-07 w/S2-08, provides prescriptive requirements for cold-formed steel-framed detached one- and two-family dwellings, townhouses, attached multi-family dwellings, and other attached single-family dwellings. This new version supersedes the previous 2006 edition.
The revisions to the standard are significant, such as allowing the Prescriptive Method to apply to three-story buildings and buildings with hip framing, which were not addressed in previous editions. There are also changes that increase the competitiveness of cold-formed steel in the marketplace, including provisions for clip angle bearing stiffeners, hole reinforcing, single L-headers and inverted L-header assemblies, among other additions.