On Sep 29, 2:10*pm, Mike rock wrote:
Thanks for that link descibing the drywall supporting the soffit. I
will look into it

I came across this picture of ductwork enclosed in metal framing:http://www.narrowgauge.org/sn3/graph...youtConstructi...

Could that be done? Its not attached to the duct.

Sure it can be done that way - you just saw some pictures of it!

The metal framing is touching the ductwork and that will just transmit
the duct noise to the soffit. Maybe that wouldn't bother you, but I
tend to eliminate noise problems whenever I can.

You could build that same thing by using three lengths of metal
framing angle and two pieces of drywall. Faster, cheaper and still
plenty strong. Is your soffit so big that you have to have
conventional framing?

R