Sheet Metal & Air Conditioning Contractors’ National Association

SMACNA Press Releases

SMACNA's "Round Industrial Duct Construction Standards," third edition, now available

Jul 31, 2017

CHANTILLY, VA—SMACNA's revised “Round Industrial Duct Construction Standards,” third edition, 2013, an American National Standard, ANSI/SMACNA 005-2013, is now available.

Round Industrial Duct Construction StandardsThe standard expands the scope of the second edition, updating the duct materials to include aluminized steel, temperature correction factors for round industrial, and minimum decimal thickness for aluminum duct selection tables. Several chapters offer a standardized, engineering basis for design and construction of industrial duct of Class 1 to Class 5 air.

A spiral duct chapter for Class 1 and Class 2 air covers design pressures ranging from 30-inch wg negative to 50-inch wg positive, plus carbon and galvanized steel tables. The 660 page-book includes expanded tables for stainless steel and aluminum, expanded tables for duct sizes up to 96 inches in diameter, plus Class 5 systems handling corrosives and spiral lock-seam pipe.

The “Round Industrial Duct Construction Standards,” third edition, 660 pages, 2013, is available in both book and PDF formats. Annual subscriptions may also be purchased. Order online at the SMACNA Bookstore.

Non-member list price for the book is $356, $356 for the PDF, and $588 for the book/PDF combination. Discounted prices for architects, engineers, government, and code officials are $256 for the book, $256 for the PDF, and $422 for the two formats purchased together.

The discounted price is available only to architectural and engineering firms and their employees provided they are not in the contracting business as well. (Government agencies, schools and universities also qualify for the discount.)

The Sheet Metal and Air Conditioning Contractors’ National Association is an international trade association representing 3,500 contributing contractor firms and is dedicated to promoting quality and excellence in the sheet metal and air conditioning industry. SMACNA has national offices in Chantilly, Va., outside of Washington, D.C., as well as on Capitol Hill. Visit for more information.