On Sep 28, 5:43*pm, Mikepier wrote:
I have an ongoing project in my basement and was considering framing
out my HVAC ductwork. I was considering using furring hat channels
like this.http://www.phillipsmfg.com/images/pr...chan/78DWC.jpg

The furring strip is only 7/8" thick. My main concern was fastening
these directly to the ductwork using small "zip" screws. Are there any
drawbacks drilling into the ductwork? Are these furring channels a
good idea? I figured it would be a lot easier framing than using wood
for framing.

I would recommend against screwing into duct work. Its not a huge
deal but added weight & little screw tips to the interior of the ducts
is not a great idea.

I would make the framing out / boxing out of the duct work a totally
separate structural unit.

cheers
Bob