+1 todd1010,
Cork or cork board(if you can find it) - granite tile -1/4" to 1/2" layer closed cell polyethylene foam - granite tile, this makes a excellent layered sandwich base for wood floors.
Cork or cork board(if you can find it) - granite tile -1/4" to 1/2" layer closed cell polyethylene foam - granite tile, this makes a excellent layered sandwich base for wood floors.