The Steel Deck Institute was formed to bring uniformity to the design, manufacture, quality control and construction practices applicable to cold-formed steel decking.
SDI news and updates
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New! May 2012
The First Edition, RDDM, of the SDI Roof Deck Design Manual continues the efforts of the Steel Deck Institute to provide uniform industry standards for the engineering, design, manufacture and field usage of steel decks. This manual is now available.
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New! May 2012
Our updated SDI Code of Standard Practice is now available. Download a free copy from our publications page.
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New! March 2012
Our new American National Standards Institute (ANSI) / Steel Deck Institute (SDI) standard for Composite Steel Floor Deck - Slabs (C-2011) is now available for free download.
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New! Spring 2012
Our new American National Standards Institute (ANSI) / Steel Deck Institute (SDI) standards for Quality Control and Quality Assurance for Installation of Steel Deck (QA/QC-2011) and Test Standard for Composite Steel Deck - Slabs (T-CD-2011) are now available for free download.
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Fall 2010
Our recently updated American National Standards Institute (ANSI) / Steel Deck Institute (SDI) standards for Steel Roof Deck (RD-2010), and Non-Composite Steel Floor Deck (NC-2010) are now available for free download.