American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)

Alternative Title

DESIGN GUIDE D111-09, with Errata Incorporated


"The Design Guide for Cold-Formed Steel Purlin Roof Framing Systems provides information for the designer of single span and continuous multiple span steel purlin-supported roof systems with an emphasis on the design anchorage systems. The Design Guide is based on the American Iron and Steel Institute (AISI) North American Specification for the Design of Cold-Formed Steel Structural Members, 2007 Edition. Where the Specification is silent on design issues, the procedures are based on published references and on the opinions of the authors.

The Design Guide was co-sponsored by the American Iron and Steel Institute (AISI) and the Metal Building Manufacturers Association (MBMA).

AISI and MBMA acknowledge the efforts of Dr. Thomas M. Murray, P.E., Emeritus Professor of Civil Engineering and Environmental Engineer, Virginia Tech; Dr. Michael W. Seek P.E., Walter Seek Engineering, Johnson City, Tennessee; and Mr. Jeff Sears, P.E., Kirkpatrick Forest Curtis PC, Oklahoma City, Oklahoma. The authors wish to acknowledge the financial assistance of Virginia Tech and Star Building Systems, Oklahoma City, Oklahoma, in sponsoring a large part of the background research for this Design Guide. The contributions of Dennis Watson, P.E., BC Steel, Oklahoma City, are also acknowledged."--Preface, page i.


American Iron and Steel Institute (AISI)

Publication Date

March 2011

Document Version

Final Version


© 2009 American Iron and Steel Institute (AISI), All rights reserved.


First Printing -- June 2009
Second Printing -- March 2011

Document Type

Technical Report

File Type