Quote:
Originally Posted by runamuck
Why would you advise using 1/2" ply when that is another reflective surface? From all I've read, using absorptive material simply enclosed by a frame to hold it is more effective.
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To make it rigid and sturdy. you might be able to get away with 3/8" or even 1/4". And the plywood won't be reflective with 4" of 703 on top of it.
Yes, 4" of 703 surrounded by a lightweight wood frame is fine for hanging on the wall. But free-standing on the floor, probably not -- the frame will try to become a parallelogram.