Originally Posted by Ben98gs
I will try home depot then... Lowes near me only had the thickest of .125
This is the last step to having my theater up and running (then hopefully the AVIA disc comes soon so I can calibrate).
Both HD and Lowes only had huge sheets of ~0.23" plexiglass ($40) near me.
So I used 0.25" compressed board. Got a 1.5' x 3' sheet for free from HD. I found it in the scrap pile in the wood section, but it was not marked with spray paint, so they gave it to me for free at the register! Even if it were marked, it would probably only have run a $1 or $2 since it was scrap.
I spray painted it white to match the wall color. Looks fine if you ask me. I was also able to cut a hole in the pressed board where the center of the flange went over - thinking that I'd feed some cables through. I opted not to do that since I will have multiple mounting points in my basement. But the hole adds extra ventilation.
In addition, I may use my jigsaw and "customize" the shape (around the location of the mounting screws) to allow for even more ventilation. I think that the pressed board may be easier to work with for shaping and also add a little more support than the 0.22" plexiglas for a "customized" shape.