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GravelGuy 02-14-2013 11:45 AM

Question on basement ceiling framing
 
In the process of finishing my basement. I need to frame around the duct work running the length of the basement but need to save as much headroom as possible. My question is will 2x4's laid flat support drywall without sagging? (about a 4' span)

brockmiera 02-14-2013 11:56 AM

Quote:

Originally Posted by GravelGuy (Post 1117017)
In the process of finishing my basement. I need to frame around the duct work running the length of the basement but need to save as much headroom as possible. My question is will 2x4's laid flat support drywall without sagging? (about a 4' span)

Your bulkhead is going to span 4' or the drywall is going to span 4'?

brockmiera 02-14-2013 11:56 AM

Oh a picture would help too. Then I could draw all over it in Paint and post it back up.

GravelGuy 02-14-2013 12:03 PM

Can't supply a picture right now. The widht across the ducts is about 4'. I can support from joists on both sides so the 2x4 will span about 4'. I want to lay the 2x4 fllat (3.5" side down), but didn't know if it would sag with the weight of the drywall?

brockmiera 02-14-2013 12:48 PM

I dont think you will have any problems with that. I'd wait on a few others to chime in. Make sure you frame 16" O.C. the length of the bulkhead too.

drtbk4ever 02-14-2013 01:17 PM

I'm curious as to what the experts suggest as well.

woodworkbykirk 02-14-2013 03:28 PM

if its simply a bulkhead just use 1 5/8 steel stud and track.. the only weight it has to hold is the drywall itself

firehawkmph 02-14-2013 06:02 PM

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What Kirk said would work, your 2 x 4 on the flat would work. I usually use 1 x 6 t & g knotty pine to span the ducts and wrap the vertical sides. You still have to build a wall on either side, but you only have to have it drop about a 1/2" below the low point of the ductwork. Its a nice look and breaks up the drywall look.

drtbk4ever 02-14-2013 06:10 PM

Nice idea. I like the fact you don't lose much headroom with this method.

MikeKy55 02-14-2013 06:25 PM

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I had a supply and return duct running down the middle of mine. I am far from a professional, but I built ladder bulkheads on each side, laid the 2X4 flat running across and then stood a 2X4 vertical down the center, screwed it to each crossmember and every 4 feet ran a short piece of 2X4 up to the floor joist above. This gave me about 2 more inches of headroom. Once it was all fastened, I grabbed the crossmembers and hung my body weight from them (about 190 lbs). They didn't move. This was probably over kill, but I'm known for that. I used 5/8th drywall on the ceilings and was a little worried it would sag.


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