I'm building some corner traps by basically building a triangular frame that will fit snug into the corner. The outer triangle will have chicken wire to hold the insulation in, then fabric on the outside of the chicken wire to make it look pretty.

So my questions:

1st, I have enough ductliner left from my walls to put 2" thick inside each trap. Will this be enough or should I add more? I also have plenty of fiberglass wall insulation I could use behind the duct liner if you think its wise.

2nd, Should I fill in the entire corner with insulation or should I leave an airgap back there?

3rd, Do most people cover traps with a GOM like material or is something thick and plush recommended?

What you cover it with really doesn't matter to a point. It's not like putting cloth in front of a speaker. If you can blow through it pretty much at all, it'll be OK. Fill the whole thing with insulation. You might find it easier to cut into triangles and stack up.

Bryan