SMACNA has issued six model specifications or guides on HVAC-related work to assist members and the specifying community in correctly specifying sheet metal components and their installation. The model specifications reference CSI’s MasterFormat Division 23 – HVAC and include the following sections:

• Metal Ducts – Section 23 31 13
• Dampers – Section 23 33 13
• Duct Silencers – Section 23 33 19
• Turning Vanes – Section 23 33 23
• Duct-Mounting Access Doors – Section 23 33 33
• Flexible Connectors – Section 23 33 43

All sections reference relevant SMACNA standards. Members are encouraged to share these model guides with partners in the specifying communities for editing to fit the needs of specific projects.

These six model specifications can be found on the Business/ Project Management section of <www.smacna.org> under “Contract Administration.”