How to Soundproof a Door: 9 Cheap Noise Stopping Steps

A door is one of the most common places that sound waves exploit to go in and out for your room, that is why it is extremely essential to soundproof your door.

Most people looking to soundproof their room often forgets the door which makes the whole project rather pointless, since sounds will easily go through the doorway.

Fortunately, this article will show you exactly how to soundproof your door, some of the steps require a bit of an effort but totally doable and you don’t need to hire anyone to get this done, let’s jump straight to it.

Here are the easy steps to sound dampen your door:

1. Close of the Gaps and Holes using an Acoustic Caulk

If you look carefully, you will see small holes or cracks on the edge of the door. Holes and gaps on the door are one of the main reasons for airborne noises passing through the doorway. Most of the doors have these cracks and gaps and most of us ignore caulking them.

The first step you need to do is to take a good look at your door and look for the gaps and cracks. You will normally find most of the cracks are on the edge of the door.

One important tip is to turn off all the lights and then ask someone to hold a light behind the door. The place through which light penetrates is the place you should caulk the gaps.

To fill up large gaps on the edge of the door, I Recommend you use GREAT STUFF Big Gap Filler 12 oz Insulating Foam Sealant simply because it is one of the best sealants.

This product is a water-resistant airtight and paintable sealant that is perfect to fill and insulate gaps that are 1-inch or greater.

Other custom doors even have small cracks which may transfer a decent amount of sound to the other side. So if you have small cracks that are less than 1-inches, it is difficult to fill these gaps with the Great Stuff Big Gap Filler.

For small holes, I recommend that you try the Red Devil Small Gap Foam 12 oz because it can seal and insulate gaps and cracks up to 1″ in size.

2. Use Soundproof Weatherstrips for the Door

Finding and closing the gaps with sealant is a cheap and affordable way to start your doorway soundproofing journey.

Another great inexpensive way is to install a weatherstripping tape for the door. Weatherstripping tapes are usually used to keep out rain, wind, and dust passing through the door. However, they are also great for soundproofing the doors and windows too.

For easier installation, you should buy an adhesive weatherstripping tape. I recommend you to use Indoor Weather Stripping from Keeping Fun because this has unique grid adhesive backing.

Just stick this weatherstripping along the door frame to create compression and an airtight seal to prevent noise going through the door.

3. Apply Mass Loaded Vinyl (MLV)

MLV is a type of thick sheet that creates a great barrier to airborne noises. If you have a drum room or you use your room for home theatre and the noise of the doorway is disturbing you, then you should install the mass loaded vinyl to reduce the noise.

The golden rule that you should always apply when looking for Mass loaded Vinyl is looking for a thicker one, the thicker the MLV the better.

There are different types of Mass loaded Vinyl but the one I recommend is TMS Mass Loaded Vinyl 4′ X 10′ (40 Square Feet) 1 Lb MLV Acoustic Barrier.

What I like about this one, in particular, is the thickness of this material is 1/8 of an inch and the 27 STC rating is good to reduce unwelcomed noises.

All you have to do is get mass loaded vinyl and cut that according to the size of your door. Then you can either attach the mass loaded vinyl with staples or if you want less hassle, you can stick it to your door with a stronger adhesive.

If you want to reduce more sound I recommend that you double the layer and attach them to your door. One thing I think can be a set back with mass loaded vinyl is the fact that it is a bit costly, however, you can afford it and look for the best solution then I highly recommend it.

4. Use a Sound Deflecting Door Sweep

Weatherstrips are great at combating the noises coming in from the small cracks around the edge of the door. However, if inspect more you will notice at the bottom of your door when it is closed, you will see gaps between the floor and the door.

This gap can let in a lot of sound waves, and that is why installing a door sweep is necessary to sound deaden your door. The function of a door sweep is to block the noise that passes through the gap between the floor and the bottom of the door.

You can use any door sweep to achieve these results, the one door sweep that I recommend is Under Door Sweep Weather Stripping Soundproof Door Draft Stopper by Senspi.

Unlike weatherstrips installing a door sweep takes more effort, Door sweeps have fasteners that must drill and screwed. So you might want to take the help of a friend if you don’t want to take the hassle of installing it, if you are handy then you can do it yourself.

5. Add Rugs near the Door

Placing a rug near your door, you can reduce the noise that comes from the other side especially a hallway. Rugs can also get rid of echoes and it is wise to place a rug in your hallway or garage where there are lots of echoes.

Rugs are also great at enhancing the aesthetic look of your room. Buying a thick rug can further reduce the noise. However, rugs can be a bit pricy and although they dampen the sound, they are less effective to reduce noise compared to other affordable soundproofing methods.

But the plus point of the rug is that they do not need any work or construction to reduce noise or echoes like some of the other methods need and they also enhance the look of your room.

6. Use Acoustic Foam Panels

If you are not looking to spend a lot of money on mass loaded vinyl to soundproof your door and looking to complete the whole project is cheap as possible. That’s when the acoustic foam panel comes in.

They are affordable and they are a great barrier to noise especially reverbs. If you have a studio on the other side of the doorway, then installing acoustic panel is a great choice.

You can get a 12 pack acoustic foam and use some of them to soundproof your studio as you don’t need all 12 of them to soundproof your doorway.

The top Quality Acoustic Foam panels I recommend are by Foamily, they are one of the top acoustic panels that are affordable to buy.

One thing I like about this product is that you have a variety of colors to choose from. This product includes 12 pack of acoustic panel. Each of the panels is 1 square foot and has a thickness of 1-inch. They are great for reducing echoes and waves.

You can attach these acoustic foam panels with nails and hammer, however, that may damage your door and I don’t recommend it. However, you can use some adhesive strips or adhesive glue to install this sound dampening panel on your door.

7. Try Soundproof Curtains

Most people think that curtains are mainly used for windows and why am I suggesting you use soundproof curtains on your door.

The reason is that curtains are a great absorber of sound and they are excellent for dampening the sound. Also, there is no reason that you cannot install a soundproof curtain on your door.

Some room does not have any doors. Maybe your basement stairs do not have any door and you work or have a studio in your basement and lots of sounds come into the basement.

Also, you do not want to spend a ton of money on installing a soundproof door. That’s where using soundproof curtains becomes very effective.

Also, besides lowering the sounds, curtains are also great for blocking light coming in and insulated curtains can also trap heat.

8. Use Moving Blankets

Hanging blankets on your door is not pretty, to be honest, but it one hack that you can try right now to help soundproof your door, but the trick here is to use moving blankets rather than any blankets.

This is easy and straight forward all you have to do is get moving blankets if you don’t have them already, and simply hang them on your door to block some of the noises.

9. Get an Acoustically Treated Door

Some of the doors installed in a house is a hollow-core door. Hollow core doors are lightweight, thin and are a great amplifier of sound.

The hollow core door is maybe one of the reasons why lots of sounds come through the doorway to your room. By getting a solid core door, you can solve this problem. They are thick and a great absorber of sound.

You will feel a huge difference by replacing a hollow-core door with a solid core door. However, they are one of the most expensive methods to soundproof your doorway.

You have to spend a lot of money. Also, replacing or installing a new door is not easy and requires a professional.

Final Thoughts on Soundproofing a Door

I hope this article taught you the best practices to use when soundproofing your door, all of the outlined steps are fairly easy to do and affordable.

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