Looking for suggestions on what to put on the bottom of a door for accoustic reasons. I am looking to address the gap between the floor and the door, itself. Is there a conventional product for this? I've had thoughts of routing out a groove along the 1 1/4 inch thick underside and installing some kind of fabric, or other material that won't scratch polyeurathane as it opens and shuts. There is no threshold. Its an interior door.

TIA,
Chris
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Amateur At Large