Best Portable Generator Enclosure Shed.

The need of a generator housing is what has led many people to research on the best Portable Generator Enclosure .

In this post, we’ll reveal to you the top best generator storage sheds on the market to consider.

At the end,  you’ll also find the actual steps and spectacular videos to help you build a super home generator enclosure if you prefer burning some calories….

 A generator enclosure is a housing that provides shelter to a generator outside the building.

Since you cannot use gas generators inside a building, you need to store the generator outside.

A portable generator enclosure can be moved from place to place without the need of removing the generator inside.

Portable generator enclosures are compact and light to carry.

The Portable generator sheds are great for residential homes and even work areas.

They muffle up the noise that the generators produce, leaving only a humming sound to escape.

The portable generator noise reduction quality that the generator enclosures possess enable a serene environment, but that is not the only benefit you will get.

They also reduce the fumes being emitted by trapping the excess gases from escaping into the atmosphere.

Top 3 Best Portable Generator Sound Enclosure.

1. Suncast BMS3400 34 cu. ft. Horizontal Shed.

The Suncast portable generator shed is also another one of the great sheds that is much more efficient than a homemade generator enclosure.

It offers a great deal of space for you to store your household tools in, therefore helps you to clear out the stuffed garage.

This outdoor enclosure for portable generators can be able to silence the noise produced by the generators down to a hum.

Best Portable Generator Enclosure CLICK TO CHECK THE CURRENT PRICE

It has a double walled resin construction that helps to reduce the sound that escapes outside efficiently.

The floor is also tough and allows you to store some heavy duty tools without destroying it. The floor is also easy to clean and can have a neat look because of the spacious room inside.

This Suncast shed has a capacity of 34 cubic feet, providing enough space for you to store your items.

Once the doors are closed, the shed is sealed from the outside weather conditions. Your generator will not be affected by the rains afterwards.

A padlock hasp is included on the doors to help you secure your items in the shed.

Locking the shed will also prevent children from entering inside and playing with the tools which can be dangerous to them.

The door is very wide; hence you can insert items with ease in the shed.


The height of the shed does not allow users to fit in many items at a go. With a generator inside, you can place a couple more tools inside before the shed is full to capacity.

2. Keter Store-It-Out MIDI Outdoor Resin Horizontal Storage Shed.

The Keter Store sound enclosure generator shed is also an ideal storage shed for you to use if you do not have time to build portable generator enclosure all by yourself.

It measures 30 cubic feet, giving you more room to store your generator together with other tools. The extra room in the shed also ensures that there is ample circulation of air when the generator is working.portable generator shelter


The floor of the Keter shed is extra strong. The heavy duty items that you store in it will not damage it. If you forget to handle the tools with care at times, the floor will hold and absorb the shock.

It is also easy to install the shed. For most people, they just spend like 45 minutes to complete the installation of the shed.

The portable generator enclosure plan used in the construction of this shed made it possible for the shed to retain a lot of room inside, even with the double wall. The inner-dimensions measure 25×47.5×39.5 inches (LxWxH).

The shed is lockable too, allowing you to secure your tools outside without having to worry about burglary.

The Keter generator shed is durable and can last for many months without showing any defective features.


The shed does not do well in the hot seasons. The material used in the manufacture of the shed may eventually start to crack.

The doors are the ones that are mostly affected, making it a minor drawback since they are replaceable.

3. Rubbermaid Horizontal Storage Shed, 32-cubic ft.

This is a huge shed that you can use to store more than just your portable generator. This Rubbermaid home generator enclosure can be used to store the large home equipment like the hoes and the lawn mowers.

It measures 32 cubic feet, giving room for even the largest portable generators to fit perfectly together with the other large equipment. You can save more space in your garage for your car by storing the unnecessary stuff here.How to Build a Portable Generator Enclosure


The Rubbermaid generator shed has rollers on the lid to allow you to slide it back when you want to access the items inside the sound enclosure.

Since the walls are lined with rubber, the whole generator shed cannot be affected with the weather changes; cannot rust or crack on rainy and sunny seasons.

The shed is therefore highly durable and convenient for this task. The shed has 8 wall anchors on the sides to enable you to hang messy cables and shovels.

The installation does not require any complex tools. You can use the common household items to put the Rubbermaid shed together.

The shed is also double walled to keep everything cool when the weather outside is freezing. The internal temperatures will not be as cold as the outside during winters.


Some of the shipments have had bent walls packed inside. The cause of the bending has not yet been determined, but this has inconvenienced a lot of people who have had to wait for replacement shipments before they get to use the generators outside.

Steps On How To Build A Portable Generator Enclosure DIY.

Materials Needed:

For you to make your own generator sound enclosure shed, here are the few things you need;

  • Plywood (measurements depend on the size of your generator, but the universal size is 20×20”.
  • Styrofoam insulator (for noise)
  • Duct tape
  • Nails
  • Wood glue
  • Wooden planks (for support)

Step One:

Measure the lengths of the ply wood according to the size of the generator that you have.

A big sized generator enclosure can measure 20in3. To save on materials, you can take the measurements according to the size of your generator.

Step Two:

After you are finished cutting the plywood according to the desired measurements, you can move forward on cutting the wooden planks to become the pillars supporting the corners.

These pillars are the ones that are going to be nailed together with the ply wood, so you better make them a bit thick.

You also need some wood to support the doors, so be sure to save some for that. The pillars can be 2” thick or more for maximum stability.

Since they will be at the ends of the enclosure box, you fill first make twelve of them, then add two extra ones that have the same length as the ones covering the height of the enclosure and hence you will have a total of 14 pillar planks.

You will need to cut some other smaller planks, which are going to be used on the doors, but you can still use any other design that you may wish for the doors.

Step Three:

Start with nailing the doors. You should cut the plywood which will make the door in half.

You can then reinforce the door with the planks (make them thinner than the pillars to avoid weight).

When you are nailing the planks, make sure that you also include a stronger plank in the middle for the latch to be nailed on.

Step Four:

You are now ready to nail the rest of the box together. Since it is a portable generator sound enclosure that users the corner pillars for strength, it should be easy for you to nail the sides together.

If you do not know how to build a portable generator enclosure or any other structure from scratch and ensure full stability, you can always make the base thicker.

The alternative is to place two diagonal planks that match exactly with the length of the diagonal. The edges should also fit the corners.

After you place the diagonal planks, you can nail the bottom part of the enclosure together. You can add one more layer of plywood for stability of the generator.portable generator enclosure plans


Step Five:

It is now time to make the roof of your DIY generator enclosure. It does not have to be something fancy just some planks and oxidation resistant roofing material.

To make it removable, you can include a large plank on one side and one small plank on the other to make it slant. You can place any reinforcement planks in between.

Extend the roof to be a bit wider and curved at the edges to cover up the exposed parts from rain.

The exposed parts are the places where the fumes are going to escape and get pushed down to the ground instead of entering the atmosphere directly.

You can add the other features like the latch, Styrofoam and paint to have a complete shed. The Styrofoam is used as a lining in the inner parts of the outdoor generator box.

If you need something quick and much more efficient, you can choose one of the ready made Generator storage sheds from the above list as you teach yourself how to build a portable generator enclosure at your own leisure:

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