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Open Joist™Mechanical Clearance

Open-web design leaves plenty of room for mechanical systems (HVAC, plumbing, electrical) to be installed within the floor frame.

 

THROUGH-TRUSS CLEARANCES FOR MECHANICALS INSTALLATION

Truss Depth Type A Type B Type C
9-1/4” 3” X 9” 5” Diameter N/A
11-7/8” 5-1/2” X 5-1/2” 6-1/2” Diameter 3” X 10”
14” 6-1/2” X 6-1/2” 8” Diameter 4” X 12”
16” 6” X 12” 10” Diameter 3” X 18”
18” 8” X 12” 11-1/2” Diameter 5” X 18”
20” 10” X 12” 13-1/2” Diameter 7” X 18”

Clearance

To download the Mechanical Service Clearance detail above, right-click or Ctrl-click on the link, then choose “Save Target As” or “Save”.

Mechanical Service Clearances - PDF