Soundproofing Door Core
I’m looking to build a semi sound proof door for a child’s room (for sleeping purposes). I am not looking for recording studio level soundproofing, or party-wall sound blocking (the wall is what it is; I’m not adding extra drywall or anything like that). I’m looking rather to build a door that can muffle normal conversations and noises in an adjacent room.
My understanding is that most important will be creating tight seals around the perimeter.
Beyond that, is there a material or construction method that is worth using for the core of the door itself that is appreciably better than just a solid wood door?
It is fine if the door is a bit heavy or a bit thick, but I don’t want it to feel like it’s made of lead or by as thick as a wall.
The reason I am looking to build and not buy the door is because it is a slightly larger opening and in an awkward location that doesn’t work well with a regular or even french door. I will be making it a bi-fold door, which of course comes with added challenges in terms of sealing the door.
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