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Framing around duct work - seeking advise

Framing around duct work - seeking advise

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  #1  
Old 05-05-17, 10:20 AM
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Framing around duct work - seeking advise

Hi guys,

Have a question here on framing around duct work in the basement (see attached photos). My issue here is that I can only install the soffit ladders on 2 sides of the duct work, one ladder on the left side of the supply duct and one ladder on the far right side of the return duct. This spans ends up being 27 1/2 inches from ladder to ladder. Now, I am aware that I can install cross braces between these ladders made of 2x4 and space them either 16 or 24 oc, but my problem is head room, this would bring me down close to the height of the door leading into the bedrooms (you can see the door spaces in the frame, under the duct work). Ideally, I would like to attach drywall directly to the ladders and leave a quarter or half an inch spacing between the duct run and the drywall, but I am afraid that the drywall will sag due to overspan, as this would mean the drywall would be installed 27-28" on centre. Just a note, I am using 5/8" type drywall, which is stiffer than typical 1/2 drywall.

I also contemplated installing metal Residual Channel as cross braces 16 oc., the channel is 3/8" thick. But again, I am afraid 27" is too much of a span for it, as the manufacturer calls for either 16 or 24 oc installation.

I would appreciate any input.

Thanks.

Any suggestions
 
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  #2  
Old 05-05-17, 02:28 PM
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Ever think about leaving the ducts exposed? Paint them if you wish.
 
  #3  
Old 05-05-17, 03:58 PM
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5/8" on 27 or 28" center will be fine.
 
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Old 05-05-17, 07:34 PM
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I find it easier to frame around ducts using steel studs and track.
 
  #5  
Old 05-09-17, 12:51 PM
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It would actually be 29" oc, i am afraid that the 5/8 drywall will sag with time. Any other options you guys can suggest in this situation, keeping in mind the head room? Thanks
 
  #6  
Old 05-09-17, 02:01 PM
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I too think it should be fine, but if you are really concerned, you could probably hang a center support from the joists above. If would not be easy but if you could get 3 or 4 2x2's attached to the joists so they hang down between the two ducts, you could fasten a 2x4 on edge to the 2x2s using hurricane straps or the like.
 
  #7  
Old 05-09-17, 02:57 PM
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Wink

Are these ducts returns? Put a few screws into the duct.
 
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