How To Build A Soundproof Generator Box In 7 Steps

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Silent Home Hub How To A Build Soundproof Generator Box

Do you hear a lot of noise? That’s probably your generator making an unpleasant sound as it runs in the background.

Generators are handy things, especially when there’s a power shortage.

One can power your home in no time, and you can continue with your daily tasks without any interruptions.

But if there’s one annoying thing you’ll have to live with when using generators, its loud roaring sounds that can wake your entire neighborhood.

Luckily, you can easily get rid of this problem by knowing how to build a soundproof generator box. You don’t have to live with the loud noise every time you use it. You also won’t have to worry about any sound escaping from your home.

You can build your sound-reducing box, and it won’t even take an entire day. Here’s how you can make it.

Table of Contents

Prepare Your Materials

Couple preparing materials

Before you get started with building your soundproof generator box, you’ll have to prepare your tools and materials.

Whether you plan to build a collapsible, permanent, or portable box, these are the essential materials you’ll need:

For the body of the soundproof generator box, it’s okay to use plywood, especially if you’re having a hard time looking for Medium Density Fiberboards. However, MDF and Fiberboards provide better soundproofing than plywood.

You can also use regular glue or sealant to secure the body of your box, but using Acoustic Caulk is more effective at soundproofing your generator box. 

Some people prefer to have a portable generator box, especially if they do a lot of outdoor or camping activities. Most of the time, lugging these generator boxes is inconvenient because it’s heavy.

One thing to note is they produce a loud noise when used. This is particularly true for anyone who brings their generator when camping. 

If you plan to build a portable soundproof generator box, you’ll also have to prepare the following materials:

  • Preferred Wood of Choice
  • Four wheels 
  • Lever

Start the Building Process

Couple Starting the Building Process

You can build your soundproof generator box without taking an entire day, and the steps are easy to follow.

Now that you’ve prepared your materials, it’s time to get started and build your very own soundproof generator box. Before you begin, take note there are four key processes you’ll need to prepare for:

  • Taking down measurements
  • Cutting your materials
  • Installing materials
  • Assembling all the pieces

Step 1: Take Measurements

Measuring Tools

Before you get started with the actual building process of your noise reduction generator, you need to know what size your soundproof generator box should be.

You can even consider this step as vital to the success of your project. This is because all your other materials are based on the measurements you’ll take now.

How To Proceed With This Step:

Using a ruler or measuring tape, start by measuring your generators’ depth, height, length, and width.

Make sure you add several inches to your measurements for the materials you’ll use for soundproofing and ventilation.

To help you make accurate measurements, take note of all your measurements on a piece of paper. Doing this will guide you with any measurements you’ll have to take in the next steps.

If you’re unsure of whether you took down the proper measurements, take your time. Repeat the process several times if you have to. 

Step 2: Cut the Medium Density Fiberboards, Plywood, or Fiberboards

Medium Density Fiberboards, Plywood, or Fiberboards

Now that you’ve got your measurements done, it’s time to cut your Medium Density Fiberboards (MDF). You can also use plywood, fiberboard, or whichever material you plan to use for your box.

How To Proceed With This Step:

Using your saw, make sure to cut it based on the size you took note of in the first step. 

Don’t forget to label every piece you’ve cut, so that you know which part goes to what position. Take note of whether it belongs to the base, sides, or the ceiling.

Moving forward, this will help prevent any confusion as to where each part belongs. You don’t want to mess up this part, because you might attach one of the pieces to the wrong part.

Step 3: Cut Ventilation Holes

Drilling ventilation holes

This next step makes sure your soundproof generator box has enough ventilation. Since generators run on gasoline, you’ll need vents to help exhaust the fumes it generates.

If you skip this step, you’ll run the risk of your generator overheating and causing unwanted fires. Not only that, but you’ll have one ineffective noise reduction box.

Generators produce a good amount of heat. They can heat up pretty quickly when it doesn’t have enough ventilation. Ventilation makes sure your generator boxes work correctly and won’t overheat anytime.

Don’t forget to put in the vents and ventilation ducts on your provision, so that your generator box has a steady supply of air. 

Don’t worry, because cutting ventilation holes for your soundproof generator box is easy.

How To Proceed With This Step:

Get started by taking down the measurements of your ventilation ducts. Take note of the measurements as well. Start cutting your MDF, plywood, or fiberboards based on the size you’ve taken. 

Note you’ll be needing MDF cutouts for this step. You’ll need the first cutout on top of your box. The second cutout will be placed on the side of the generator.

Depending on your preference, you can position the ventilation holes anywhere you like. What matters is you make sure to provide good airflow to prevent your generator from heating up, while being able to reduce sound.

Step 4: Install the Mass Loaded Vinyl

Mass loaded vinyl

You can use Mass Loaded Vinyl (MLV) to soundproof your generator box. It’s always ideal to use because of its excellent sound-absorbing qualities.

Whatever the case, the most important thing you’ll need to remember is that having more layers is vital in having an effective soundproof generator box.

How To Proceed With This Step:

MLV’s are generally used as the first layer for the installation process. Make sure to cut your MLV’s similar to the size of its MDF board counterpart. Once you have this down, secure them with heavy-duty glue, and install the materials. 

Although you can use glue or sealants for this step, Green Glue is highly recommended because of its soundproofing qualities.

It can significantly reduce any loud sound your generator box emits. Not only that, but you’re assured your pieces won’t separate from each other in the long run.

Regardless of the materials you’ll use, make sure you can securely glue the MLV to the MDF.

A great tip to remember for this step is to also apply some green glue on the edges of each MLV piece you have. This adds more security and stability to your materials. 

Step 5: Install the Foam

foam pad

The last installation process involves using foam or acoustic foam mats. Foam mats can help insulate and soundproof your generator box. It’s crucial to choose a material that provides better soundproofing.  

If you want to make sure your generator blocks the sound better, acoustic foam mats provide better sound insulation than regular foam.

This makes it ideal to use for soundproofing projects. Using regular foam though should be enough if you can’t find any acoustic foam available.

How To Proceed With This Step:

Start by cutting your foam based on the size of your MDF board. Don’t forget to take note of which foam belongs to the corresponding board size.

Once you’re done with this, attach the foam to the interior of your MDF board. Join them using green glue to help with sound insulation.

Like Step 4, don’t forget to secure the edges of your foam to your MDF board. This will help secure the pieces in place and have a stable generator box.

Step 6: Install the Ventilation Ducts

Ventilation Ducts

Now that you know the importance of having proper ventilation for your soundproof generator box, it’s time to install the actual ventilation ducts.

How To Proceed With This Step:

Place your ventilation ducts into the ventilation holes you measured in step 3. Also, don’t forget to secure it properly.

Some people often take this step for granted, failing to realize that even ventilation ducts play an essential role in the soundproofing process.

If you don’t secure your vents properly, it could affect the ventilation of your generator box and its soundproofing abilities.

You might end up having a generator box that can’t insulate sound properly, and that would be useless.

As a last step for the whole installation process, don’t forget to install the vent on the opening of your box. When you install ventilation ducts appropriately, it puts you away from having any unwanted fire or other dangerous situations. 

Step 7: Assemble the Box

Assembling Wooden Box

Now that you’ve cut and installed the pieces together, it’s time to put your soundproof generator together. Before you get started, make sure that the Green Glue has dried.

How To Proceed With This Step:

Once dry, take your MDF board together and put them where they belong. You can use the notes you’ve taken in the previous step, to guide you where each part belongs. 

This step is crucial because you’ll finally have to assemble the pieces as one. Note you can’t repeat this part.

Once you’re done, start screwing your MDF boards in place. Install the hinges so that you can easily open your generator box without any problem.

If you notice any gaps in some parts of your generator box, don’t screw your pieces in place yet. Instead, apply some Green Glue along the edges of the pieces where you find the gaps.

Don’t worry because Green Glue is an effective soundproofing material that can stop sound from escaping the generator box through the openings. 

Optional Step 8: Install the Wheels and Lever

Rolling Wheels

Now that you’ve completed the actual soundproof generator box, it’s time to install the wheels and lever on your box.

Some people prefer having a portable soundproof box because of its convenience.

This is especially true for people who engage in a lot of outdoor or camping activities. They can easily bring their generator around, without worrying about not having any power supply.

How To Proceed With This Step:

On the bottom of your box screw in place your wheels. Use thick and durable wheels that you can use in any terrain. You don’t want to risk your generator falling and crashing while you’re transporting it. 

After you’ve secured them in place, attach a lever on the side of your generator box.

Attach it securely so it doesn’t detach from your box when you pull it. When choosing a lever, take careful note it can support the weight of your generator box.

Final Words

Final Thoughts - People Smiling

Today, nearly every household enjoys the benefits of having a generator.

You have power reserved in case of a power outage. Even in cases of a storm or other unforeseeable circumstance. The only down part about using these powerful tools is the amount of noise it makes. 

You can start enjoying your generator when the need arises, without worrying about the loud noise it creates.

Use it to your heart’s content without worrying about your neighbors knocking on your door and complaining about the noise it makes.

You can be at peace that your home won’t emit any sound that will disrupt you and your family.

Now that you know how easy it is to make a one of a kind soundproof generator box, it’s time to get started. The materials are easy to find, and the building process won’t take you an entire day.

Make sure to follow the easy steps provided above, and you’ll have your soundproof generator box in no time. What are you waiting for? Say goodbye to that annoying loud noise and say hello to the sound of silence.

READ MORE: Best Quiet Generators for Your Home