To soundproof a door make it structurally strong enough to block noise by replacing it with a solid core door or by adding mass loaded vinyl soundproof blankets and panels to the existing door.
Best interior doors to block sound.
More than any other door this type of door will seamlessly replace your old six panel hollow core doors while giving you an stc rating of between 27 and 30 the look is identical to the old door but the performance will be greatly improved.
The best method as described here is the first use a curtain or tiles on the door to block out sound.
Our sound blocking curtains are lined with a material called mass loaded vinyl.
This material has an stc rating between 20 and 25 allowing our curtains to block between 60 and 80 of outside noise.
Doors made specifically for blocking sound typically have a construction that sandwiches 1 2 inch thick particle board sound board with an interior layer of lead or another super dense material.
Suggestions for a soundproof door.
Then seal the gaps with a door gasket door sweep or spray foam to prevent air leaks.
You can actually go one step further than a solid core door and buy a sound blocking door.
Use either of these that cover the entire door floor will also complete method three more.
While the material in the curtains helps them to block sound our curtains also seal around the perimeter of windows and doors to prevent sound leaks.
Solid core textured six panel door.
A solid core door helps block the transference of sound by eliminating the drum like construction of a hollow core door.
Most interior doors are made with a cost efficient hollow core.
Though most interior doors are 1 3 8 inch thick exterior doors are typically 1 3 4 inch thick.
On the other hand the sturdier solid core composite and solid wood interior.
Again because of their hollow core construction these doors sound qualities and design are similar to those of a drum which makes them ineffective at blocking sounds.
It sweeps the floor as the door is closed creating a barrier between the door and the floor making it much harder for sound to get through.