"SteveC" wrote in message
...
Putting in a basement appartment. I want to run 4" ducting up inside a
2x4 wall, up past the 8 foot concrete wall and outside between the floor
joist.

Can I bend or squat the 4" to fit in the wall? I guess I could cut out
some of the 2" polystyrene insulation 1/2 and inch to fit.


Restricting the duct could affect the dryer's performance. If going up
inside of the wall is your only option, then I suggest using oval duct. It
will have a larger capacity than the 4" round and is made to fit into walls.
You may have to get some transitions from oval to 4" round fabricated to put
on each end. Any sheet metal shop can do this.