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-   -   Adjusting Floor Joist for HVAC (http://www.diychatroom.com/f19/adjusting-floor-joist-hvac-25782/)

wrldruler 08-26-2008 11:53 AM

Adjusting Floor Joist for HVAC
 
Trying to convert garage into family room. I want to run ductwork from
basement to attached garage.


HVAC guy wants to put a vent under my front window. Problem is that
the end of the garage (where the vent will go), is about 4' past the
end of the basement. So if I took the ductwork out of the last
basement bay, it would be about 4', and a few garage bays, away from
the target vent location.


So I need the ductwork to come out of the basement wall, hang a left,
go "through" a joist or two, and enter another bay. Then it can run
down that bay and end in the vent.


So how should I adjust my floor framing to accomodate this duct? Is it
possible to end my joist 6" before the wall, and "box it out". Will
this have negative impacts on the strength of the floor?



Thanks,
Chris

buletbob 08-26-2008 12:48 PM

what size is the duct that he is going to run. could he use a 4"x duct. and then run it under the floor joist's. how much room do you have under floor framing?. BOB Could you post a picture???

Termite 08-26-2008 01:00 PM

In most cases (although not all) you can header off a joist to the two adjacent joists to create a space for HVAC to penetrate.


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