How to Build a Soundproof Box for a Generator

What is a Soundproof Generator Box?

Harsh weather conditions of a place can result in unpredictable power outages. To overcome such situations, many houses, offices, and industries get a standby generator installation service, which can provide temporary electricity until the power from the grid gets restored. However, most generators are very loud and can cause disturbance to some people.

To overcome this issue, a soundproof generator box aka canopy can be installed to silence the noise being produced by the generator. A soundproof generator box is like a quiet house for a noisy generator. It is built with sound-absorbing materials that help the generator noise to escape from the box. This box helps make the generator get quieter when it’s running, so it doesn’t bother people nearby.

So how to soundproof a small generator? Are there any generator canopy manufacturer? Where can you get one? Getting a soundproof generator box may get a little pricey. Therefore, we’ve come up with a DIY method to make your own soundproof box for a small generator for your home!

How to Make a Soundproof Box for a Generator?

Building a soundproof box for a generator requires some effort but it can save you a lot of money. Before starting to learn how to soundproof a generator box, it is important to understand the basic principles behind the soundproofing process.

Soundproofing your generator means minimizing the transmission of sound waves through the box. For this, it is important to use the materials that absorb or block the sound waves. Let’s take a look at the materials and tools and learn how to soundproof a noisy generator step by step.

Materials and Tools Required to Construct a Soundproof Box:

Here’s the list of materials and tools that you’ll require to create your soundproof generator box.

  • Plywood of medium-density
  • Mass loaded vinyl
  • Insulation
  • Green glue
  • Weatherstripping
  • Hinges and screws
  • Saw
  • Drill
  • Screw divers
  • Measuring tape
  • Caulk gun
  • Paintbrush

Please make sure to get good quality materials only. By prioritizing quality materials, you can enhance the performance of your soundproof generator box, ensuring it serves its purpose effectively for years to come

Steps For Construction:

Are you ready for this DIY project? Here’s a step-by-step guide to learning how to make a soundproof generator box from scratch!

Step#1: Taking Measurements

Firstly, you need to carefully measure your generator’s length, width, and height. The soundproof generator box will be built according to this measurement, your measurements need to be accurate.

Once you’ve taken the measurements, add a few inches equally on all the sides and write it down on a piece of paper. The extra inches are added so that you get some space for insulation thickness and vents.

Step#2: Cutting Out the Frame

Use pencil and scale with the right angles and draw out your measurements on the plywood of medium density precisely. You will need about six panels – four for the sides, one for the top, and one for the bottom of the box. Double-check the measurements. And then, cut out your panel frame!

Note: Plywood or medium-density fiberboard (MDF) are excellent choices for the frame due to their durability and ability to block sound.

Step#3: Assembling

After cutting, assemble the panels to form a frame that will be your soundproof box. Using hinges and screws, make your frame and make sure everything’s tight and secure to avoid any sound leakage.

Step#4: Soundproofing

Now let’s get to the main part – soundproofing. For this, you’ll have to use your mass loaded vinyl and apply it to the inner surface of each panel. For those who don’t know, mass-loaded vinyl is a dense material that helps to block the sound transmission.

Step#5: Installing Acoustic Insulation

Line the interior of the box with acoustic foam or insulation material. This helps absorb sound waves and reduces reverberation inside the box. Cut the insulation to fit the panels and attach them using adhesive.

Step#6: Sealing Gaps

Now that your box is taking its shape, it is important to make sure there’s no sound leaking in your box. Even a slight gap can allow sound to escape which will affect the effectiveness of the box. Using weatherstripping or caulking, seal any gaps or seams in the enclosure. Pay special attention to the door seal to prevent sound leakage.

Step#7: Ventilation

If your generator requires ventilation, carefully plan to install ventilation fans on the sides or top of the enclosure. Ensure that the fans are equipped with baffles or soundproof covers to minimize noise. With proper ventilation, you can enjoy a quiet generator without compromising on safety or performance.

Step#8: Testing

Once the soundproof box is assembled, test it with the generator running to assess its effectiveness. If required, make any necessary adjustments, such as adding additional soundproofing layers or improving ventilation.

And that’s it! You just learned how to build a soundproof box for a portable generator!

Safety Precautions:

Although the task seems quite easy, it is important to realize the importance of safety measures that must be taken while building your soundproof generator box. Make sure you use the equipment with utmost care, and make sure to wear gloves to avoid any injury or mishap.


Regular maintenance of the soundproof generator box is important to ensure the durable and long-lasting working of the box. Keep the box clean from inside as well as outside, make sure it’s free from debris, and keep looking occasionally for any sign of damage. Also, make sure the box is not close to any inflammable object that may cause any serious tragedy.

Conclusion - A Worthwhile Investment:

So this is all about how to build a soundproof generator shed for your noisy generator. A soundproof generator box is definitely worth it. Remember, if you want to know how to make a generator soundproof 100%, it might not be possible. 

However, with careful planning, good quality materials, and attention to detail, this step-by-step guide can help you make your customized DIY soundproof box, which will create a less noisy environment. So roll up your sleeves, grab your tools, and get started!

Recent Blogs

Average Cost Of Solar Panel Installation

Average Cost Of Solar Panel Installation

Find out the average cost of Solar Panel installation at home and are solar panels worth the cost. Get a breakdown of expenses and overall cost of solar panel install.
7 Best Generator Brands and Manufacturers in Karachi

Best Generator Brands & Manufacturers

Find out which generator brands in Karachi Pakistan are the best to buy. Explore the best of Generator Brands and Manufacturers In Karachi, Pakistan.
Share This: