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AISI Publishes Supplement No. 3 To AISI S100-16 (R2020)

Washington, DC - The American Iron and Steel Institute (AISI) has published Supplement No. 3 to AISI S100-16 (Reaffirmed 2020), North American Specification for the Design of Cold-Formed Steel Structural Members, 2022 Edition. The North American Specification harmonizes cold-formed steel design technology across the United States, Canada and Mexico, allowing for faster introduction of new technologies as well as opening up the market for a variety of derivative products such as design aids and educational materials.

Supplement No. 3 includes changes and additions approved by AISI’s Committee on Specifications since 2016, including those changes published in Supplements 1 and 2. Significant updates are made in Chapters E through J. A detailed list of changes can be found in the Preface.

Supplement No. 3 can be downloaded free of charge at as: 1) a stand-alone document, or 2) incorporated into the 2016 edition of the North American Specification. It can be found in the section titled “AISI Standards 2020-22 Editions”.

About The American Iron And Steel Institute

aisi-logoAISI serves as the voice of the North American steel industry in the public policy arena and advances the case for steel in the marketplace as the preferred material of choice. AISI also plays a lead role in the development and application of new steels and steelmaking technology. AISI is comprised of integrated and electric furnace steelmakers, and associate members who are suppliers to or customers of the steel industry. For more information, visit

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