A great reference as part of the design process for rectangular duct construction

A new approach to the selection of material thickness and reinforcing systems for rectangular industrial duct subject to positive or negative pressures up to and over 100" w.g. and 30 ft. hanger spacing of duct sizes to 14' x 14' in 16 gauge to 1/2" plate. Learn the procedures for designing class I, II, III and IV duct by the panel (top, sides and bottom) after considering loads to which each panel will be subjected. Also considers the effects of abrasives, particulate loading, corrosives, high temperature and product and environmental contamination. Referenced in the American Conference of Governmental Industrial Hygienists' (ACGIH) Industrial Ventilation Manual and in the National Fire Protection Association (NFPA) Standard 91. 136 pp.

SMACNA - Rectangular Industrial Duct Construction Standards, 2004 Updated Version - Table of Contents:

• Definition of Industrial Duct
• System Classification
• Types of Material
• Procedures for Designing Rectangular Duct
• Design Examples
• Modifications and Adaptations
• Tables
• A. For Selecting Material Thickness
• B. For Selecting Duct Stiffeners (fixed corners)
• C. For Selecting Duct Stiffeners (hinged corners)
• D. Stiffener/Reinforcing Member Data
• E. For Selecting Support Spacing
• F. Duct Section Properties
• G. Bolting for Flange Connections
• H. Hole Gage for Flange Connections
• I. Wind conversion
• Typical seams, connections and stiffeners
• Design Criteria
• Symbols

Other versions of SMACNA - Rectangular Industrial Duct Construction Standards, 2004 Updated Version are also Available:
SMACNA - Rectangular Industrial Duct Construction Standards - CD-ROM