If they are solid core, or especially the solid core with the acoustic material in the middle, yes,. But it also makes sense to put sound deadening insulation in the walls.

Thanks! Solid core door, copy that. I'm in a tiny apt in NYC so not much room to add to wall depth, the walls are already pretty solid old material (1940's).

What I'm actually thinking about doing is using a solid core door and then adding my own molding to it to create a panel looking door. The frame is pretty thick and I know I'll need to account for room to open door. That should make an extra thick door for me.

You might also consider an exhaust fan that comes on automatically with the light. You'll hear the fan, perhaps, but better than hearing other sounds, right?

The extra insulation goes IN the wall in the hollow space between the studs to help muffle the sound. You wouldn't be adding any thickness, just filling in that hollow space...same deal with a solid core door. The door itself isn't any thicker. Many inside walls are not insulated. But to do that you'd need to remove one side of the wallboard, which gets involved.

-Babka

Come to think of it - if you are in a 1940's building, your walls could be lath and plaster, rather than wallboard nailed to studs. In which case, the whole insulation thing wouldn't work. I don't think there's a cavity to even put it in, and I doubt it would help vs a solid wall. Do you know if the walls are plaster or drywall?

Actually on a true paneled door the panels are relatively thin, the door styles and rails are 1-3/8 but the panels are as thin as 3/8 for a recessed panel door and about 3/4 for a raised panel door, with 3/8" around the border of the panel.

A molded door with a panel design may have "raised panels" that are about as thick as the perimeter of the door.

Thanks for all these responses!

I was considering installing a fan in our exhaust (with permission from our coop) as, yes, it would certainly help our situation.

And yes, I believe our old construction has plaster walls (which are already quite heavy and dense) so I don't believe I can add insulation.

But what I many by creating a paneled door is I would add my own molding I too of a solid blank, therefore creating what looks like a paneled door except really thick. I believe it would look fine within the thick door frame,

Does that make sense?--I wasn't sure you knew what I meant.

You can buy a solid core door in any style of door. There is no need for you to add molding to fake a paneled door. Just buy one already having the sound-deadening material inside. S