Here’s What You Put Under the Door to Reduce Noise

Last updated on November 15, 2023

There are many ways to soundproof doors effectively. You should know how to do it properly without affecting your door’s performance. Here’s how.

To soundproof a door, you must first replace it with a solid core or add mass-loaded vinyl, soundproof blankets, and panels to it. You need to seal the gaps with a gasket, door sweep, or spray foam.

Why Should You Soundproof a Door?

You should always consider including doors when soundproofing rooms. There are many reasons why you should do this. 

Sound travels quickly through gaps, but doors are full of them, whether the gap under a closed door or the hollow interior. Doors allow more sound to escape than all of the walls combined. You should soundproof your door to keep the sounds inside or neighbor noises outside. If you’re building an at-home music recording studio, everyone outside of the room will hear everything through your door. To ensure this doesn’t happen, apply some of these tips to limit and block sound from getting out.

Soundproofing is great because nobody can hear what’s going on in your room. You can play loud music without worrying about people hearing it. It also prevents people from listening in on your conversations.

Soundproofing your doors will increase the value of your home, which makes sense because people want to buy homes that are worth more than others. Adding soundproofing material to your door is also a great idea if you plan on playing drums or guitar at home because you won’t disturb other people.

dog under the door

Place a Door Sweep When It’s Closed

A door sweep is used to block drafts and sound from the outside world. You can buy them online or at any hardware store or you can make a door sweep yourself. When installing a door sweep, make sure that it lines up perfectly. Otherwise, you’ll have to fill in the gaps or start over.

Install Soundproofing Composite Material

Composite soundproofing material is ideal for blocking out the noise coming from outside your door. However, if you want to block out the noise coming from inside your door, you should get a custom door made specifically for this purpose.

Get a fiberboard, place a fiberboard under your door. Fiberboards are very similar in the sense that they both can be used inside the door’s core or on the outside, but fiberboard isn’t nearly malleable as composite materials sheets. You won’t be able to fold it.

Fiberboard is used to make doors strong and durable. It is made by combining wood pulp and resin into a sheet. This material is then cut into pieces and glued together.

Use an acoustical sealant to improve its effectiveness further.

Use Door Gaskets

Gasket seals are better than tape seals because they are less expensive. Tape seals are cheaper, but they do not last as long.

Door gaskets are used to seal gaps at the jambs and heads of doors. Use them to prevent water leakage.

Use a Soundproof Blanket

Soundproof blankets are expensive but are great for absorbing noise. You can use suction hooks to hang them on doors. Soundproof blankets are great because you can remove them when you don’t need them.

You should reinforce the steps you’ve already taken to soundproof the door. A soundproof blanket made of heavy fabric absorbs most of the sound, but if you really want to make sure no sounds are coming into or out of your room, you should invest in a heavy-duty soundproof door.

Soundproof blankets are used by people who need privacy. They are hung on the wall or placed on a bed. Soundproof blankets are made out of thick material that blocks noise. Blankets are usually hung on the wall because they are easier to install than other types of curtains.

You should buy soundproof blankets because you don’t want to hear the noise coming from your laundry room.

Use Sound Absorbing Tiles

Soundproof fiberglass blankets are costly options. You can get sound-absorbing heavy mass foam tiles instead. These panels come in many different shapes and sizes. They’re made out of foam or wood.

Foam panels absorb sound by increasing the air resistance. Soundproofing foam blankets work the same way. You hang the foam panels on the doors, and you’re done!

Acoustic foam panels should be used to absorb noise in rooms that aren’t constantly used. Try arranging the panels in various patterns. Use acoustic foam panels to absorb sound.

Add Soundproofing Rubber

Rubber is used as a soundproofing material because it’s very thick and dense. You can use it to soundproof the perimeter of your door, but it won’t work if there’s already molding around your door.

Soundproofing rubber should be used around the edges of the door to make sure there aren’t any leaks. Acoustic caulking or an insulating sealer should be added to fill in the small gaps and cracks to prevent noise from coming into the room. Light doesn’t come in from outside because the room is dark.

Add an Automatic Door Sweep

A door sweep is a device used to sweep the floor around a doorway or entrance. It is installed on doors to prevent dirt, noise, and debris from entering the house or building.

An automatic door sweep will help keep your home clean and free of dust. It works by sweeping the floor around the doorway with a brush attached to a motor.

The best type of sweep is one that has a self-cleaning feature. This means that it automatically cleans itself after every use.


How do you soundproof a gap at the bottom of a door?

To soundproof the gap at the bottom of the door, you have to block it with material that has soundproofing properties.

Does a door sweep block noise?

Yes, a door sweep does help to block noise to an extent. Door sweeps with soundproofing properties can help you more.

Can you install a door sweep yourself?

You can purchase a DIY kit online or at most hardware stores. Kits usually include all the necessary tools and materials to complete the project.

Does putting a towel under the door work for noise?

Putting a towel under the door may not be enough to stop the noise. A towel only absorbs some of the sound waves.

What household items can you use to soundproof a door?

Use things like towels, rugs, carpet pads, insulation, etc., to soundproof the door.


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