On Wed, 22 Feb 2006 01:53:37 GMT, "Doc"
wrote:


If you make the door bigger than the doorway,
you can set it up so that it closes up against the wall,
compressing foam/felt/rubber gaskets as it does so.
That way you don't have to worry about fit.
If you want the door to open more than 90 degrees,
you'll have to use offset hinges like these:
Mounted to a 2x4 screwed to the face of the wall.

Were I doing this, I'd make the door out of 1/4" ply,
with sheetrock glued to the inside of the
plywood sheet. Either use different thicknesses of
sheetrock, or do something to change the weight or
stiffness of ONE of the two panels, so they don't
ring each other. I'm told that a layer of
asphalt roll-roofing works well for that.

How are you handling ventilation? It'd sort of
suck to have a totally soundproof room that you
have to leave the door open on, else you suffocate.