Since 1939, the Steel Deck Institute has provided uniform industry standards for the engineering, design, manufacture and field usage of steel decks.


The First Edition of the SDI Roof Deck Design Manual (RDDM) includes 13 Design Examples and Load Tables for generic profiles.*


The First Edition of the SDI Steel Deck on Cold Formed Steel Framing Design Manual (DCFS) provides XX Design Examples and Load Tables for fasteners.


ansi information

Visit our ANSI Information page to learn more about the SDI as an Accredited Standards Developer.


The First Edition of the SDI Floor Deck Design Manual (FDDM) includes 11 Design Examples and Load Tables for generic profiles.*


Download the Third Edition of our Steel Deck Institute Manual of Construction with Steel Deck (MOC3) or visit our order page to purchase a printed and bound copy.


environmental product declaration - EPD

Download the new SDI Environmental Product Declaration (EPD) for Steel Roof and Floor Deck.


The Fourth Edition of the SDI Diaphragm Design Manual (DDM04) includes 25 Design Examples and Load tables for fasteners.*

*order information

Visit our order page to purchase our Engineering Manuals. Order two and save $25.00 or three and save $50.00. Not available as a PDF.


contact us:

Steel Deck Institute
P.O. Box 426
Glenshaw, PA 15116
p 412.487.3325
f 412.487.3326
Contact SDI.

related sites:

The following sites closely relate to SDI activities:

SDI news

  • Coming Soon

    2017 ANSI STANDARDS
    ANSI/SDI RD-2017
    – Design Standard for Steel Roof Deck
    ANSI/SDI C-2017 – Design Standard for Composite Steel Floor Deck-Slabs
    ANSI/SDI NC-2017 –Design Standard for Non-Composite Steel Floor Deck
    ANSI/SDI T-CD-2017 – Test Standard for Composite Steel Floor Deck-Slabs
    ANSI/SDI QA/QC-2017 – Quality Control and Quality Assurance for Installation of Steel Deck


    Please visit our standards page to download current and previous editions of the above standards.

  • Coming Soon

    2017 SDI SPECIFICATIONS
    SDI Short Form Specifications (2017) will replace our current SDI Short Form Specifications for Steel Roof Deck, Composite Floor Deck and Non-Composite Floor Deck (2014).

  • Coming Soon

    2017 SDI CODE OF STANDARD PRACTICE SDI Code of Standard Practice 2017 (COSP17) will replace our current edition – COSP14 and provide the latest industry standard information regarding the sale, manufacture, and installation of steel deck.

  • Available Now

    Third Edition of the SDI Manual of Construction with Steel Deck (MOC3)
    The new Third Edition of the Steel Deck Institute Manual of Construction with Steel Deck (MOC3) continues the tradition established by earlier editions to provide information necessary for the proper field usage of steel deck. This edition is reformatted for easier use with updated references, including those for the SDI QA/QC Standard for Quality Control and Quality Assurance for Installation of Steel Deck.