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How to build a portable generator box?

If you’re like me, you rely on your portable generator to help keep your home running during a power outage. But have you ever wondered what would happen if your generator was damaged or stolen!. You could be left without power for days or even weeks. That’s why I decided to build a portable generator box that would help protect my generator from the elements and thieves.

A portable generator can be a lifesaver in an emergency, but it can also be a great tool for everyday use. If you have a portable generator, it’s important to take good care of it so that you can rely on it when you need it most. One way to protect your generator is to build a box around it.

This will help keep the elements out and ensure that your generator stays in good condition. So the question is portable generator users is that can we build a sturdy and secure portable generator box to protect our precious generator!.

Now you don’t need to worry because we have the answer that you’re looking for. In this guide, we’ll show you how to build a portable generator box with step-by-step instructions. You’ll be able to confidently build your own sturdy and secure box around your portable generator.

How to build a portable generator box?

How to build a portable generator box?

Firstly you need a generator, You can buy it from any shop or online store. The first step is to assemble all the tools and materials that you need. You’ll want to make sure that you have a tape measure, wood sheets, screws or nails , hinges and some sort of sealant.

The next step is to place the generator where you want to build the box. This is most easily done with help, so make sure to get someone to assist you if needed.

Next, mark off an area around your generator that’s 2 inches larger than the dimensions of your generator on all sides. That will account for the thickness of your wood and any hardware that might be used. Now you will place the generator in the center of this area and mark off where you need to cut the wood sheets.

You’ll need to mark out four pieces of wood that are 48 inches long by 26 inches high. You may also want to cut an additional piece that’s 10 inches wide by 26 inches high for added support underneath the generator itself.

Once you’ve marked out all of your pieces, remove the generator and drill holes where the screws (or nails) will go. Make sure to use screws (or nails) that are long enough to go through the wood and reach both sides. When drilling into metal it is very important not to go at a slow speed or else the drill bit will heat up and cause a fire.

The next step is to assemble all of your wood sheets together. This can be done by simply screwing (or nailing) the sheets together using the holes you drilled earlier, so it’s important to make sure that you’ve drilled enough holes for this purpose. You may also want to drill a hole in the center of your top piece so you can add a padlock for added security.

Now that everything is assembled, place it all back in place and place the generator on top. You may want to add some supports under the generator just to make sure that it is completely secure before adding any weight . This will help keep your generator in tip-top shape.

How to Build a Portable Generator Box: Step-by-step Instructions

  • Measure your generator. You’ll need to measure the length, width, and height of your generator in order to get the correct measurements of the wood sheets needed for building the box.
  • Drill holes into the wood sheets. You’ll need to drill holes for where your screws or nails will go in order to connect all of your wood sheets together. Make sure that you drill enough so that both sides are connected securely. This is important because you don’t want anything falling apart while carrying it around or if someone were to try and steal your generator.
  • Connect the wood sheets together. After all of the holes are drilled, you’ll screw or nail all of the sheets together so that it forms a large cube-like shape. Make sure that you do this on top of some sort of tarp because there will be a lot of spilling and mess. Once you’ve connected all of the wood sheets, it should look like a wooden box.
  • Create supports under your generator. This is important because the generator only has two small points where it touches the surface and this won’t be enough to maintain its balance. You’ll need to raise up the generator by creating some sort of support structure under the generator. This can be done by using a piece of wood and cutting it to size, then screwing or nailing it to the bottom of your “wood box.”
  • Decide on the dimensions. Once you’ve raised up your generator by adding supports underneath it, you’ll need to decide on the dimensions of your box. You can do this by using some scrap pieces of wood to create “bridges” in each corner, then measuring the distance between them in order to get an accurate representation of how big you want your generator box to be.
  • Cut the openings. After you’ve decided on the size and shape of your generator box, you’ll need to cut out the openings for both the electrical plug and where the gas tank goes. You can use a circular saw or jig saw for this. Just make sure that you don’t accidentally damage any of the wiring or hoses while doing so.
  • Test it out! After everything has been cut out and the wood pieces have been screwed or nailed together, you can go ahead and attach your generator to your newly built portable generator box. Just plug in all of the cords for the electrical outlets and gas hose into the corresponding openings that you just made in Step 6. You can also add a sealant along the inside edges of your box in order to make sure that no water or air gets through the cracks.
  • Protect your box from the elements. You’ll want to seal up any of the openings on your generator box in order to protect it from rain, snow, ice, debris, animals, etc. Some things you can use are clear caulk (like Elmer’s brand), exterior grade wood glue, or you can even use Liquid Nails if you don’t want it to be permanent.
  • Make sure you have an emergency plan. The last thing I would recommend is having a backup power source in case your generator breaks down or gets stolen. You can do this by purchasing another portable generator small enough to fit in your generator box. Just make sure that the new generator you purchase has enough power to run all of your appliances at once. You can even go ahead and have it set up with an automatic plug-in so that it will be ready whenever you need it!


Now you know how to build a portable generator box. By using these instructions, you’ll be able to safely store your portable generator inside of an insulated wooden box so that it’s protected from the elements and thieves.

You’ll also know how to attach your new generator securely onto your newly built wood box by creating small support pillars underneath the unit. Now you can rest easy knowing that your generator is safe and secure! If you want to learn how to make a portable generator box, then follow these instructions carefully.


Q 1) How to make a portable generator box using wood?

You can make a portable generator box using wood by following these steps, but you could also use other materials like metal or PVC pipe. I would estimate that the supplies for this entire project should cost around $200-$300 if done right. If you want to buy one pre-made, then expect to pay about $400-$500.

Q 2) Is it safe to keep gas inside of my generator box?

Yeah! Just be sure that your generator is turned off and never smoke near the tank while filling up because gasoline fumes are very explosive when exposed to heat or flame.

Q 3) How do I secure my units together so they don’t move apart when in use?

You can secure your units together by using bolts, screws, clamps, or rope. Just be sure that the fasteners are placed in areas where they won’t damage any of the cords or components when you try to move your generator box.

Q 4) Can I put hinges on my generator box so it folds open?

Yeah! That’s a great idea! If you have hinges laying around in the garage, then go ahead and attach them to the sides of your wooden box near one of the corners. Then use some sandpaper to smooth out any sharp edges before you start storing anything inside.

Q 5) How large should my portable generator box be?

The size of your portable generator box will depend on how much equipment you on bringing with you during an outage. My advice is to build the box to be slightly larger than your generator in order to have some wiggle room. This way you can attach your generator to the box and make sure that everything fits together before you start screwing things in permanently.

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