Jan. 24, 2005: SMACNA Publishes New Edition Of Rectangular Duct Standards
CHANTILLY, Va. - The Sheet Metal and Air Conditioning Contractors' National Association (SMACNA) has published the second edition of its Rectangular Industrial Duct Construction Standards.
According to SMACNA, the updated 446-page manual expands the scope of the 1980 version, updating the original text to incorporate a revised theory of design, new materials, and more "user friendly" tables.