soundproof a door

Maybe you could build a couple of gobos (short for 'go-between', a portable partition used when recording to prevent sound leakage between adjacent microphones) to fit in your doorway while you are listening to music that can be rolled away to another part of the room when not in use. You could fill them with fiberglass and put acoustical tile on the surface. Let your wife decorate them to fit in with the decor.
Just a thought.

I disagree that your Solid core door needs to be "3 inches thick and completely sealed". You can get a decent STC rating (probably around 55-60) with a regular stock solid core door, and full gasketing all around. Use gasketing from the autoparts store for car doors, and you'll be fine. Trying to get an STC rating above that in a residential environment is fairly ridiculous, and would involve a triple layer, triple sealing multi-thickness monstrosity.

Be sure to gasket around the floor as well, or use a neoprene buffer.

Hueske, I think you are right but also that a solid door even if gasketed will much satisfy someone in the next room. I think his only real answer is to find another room.

The room situation is all I have but it is a very good room. 20' x 14.5'. Not bad. I'm going to look into a solid door and gasket it well. "Soundproof" is a poor choice of words. A 70 percent reduction would be worth it. Thanks. But please let ideas keep coming.

Good thread and good responses!