I had to run a couple of extension cords outside in the weather and I didn’t want the plugs to be exposed to the elements. This is a quick guide for making a simple weatherproof extension cord junction box to keep the rain and snow out of your extension cords.

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Daisy-Chain of Extension Cords

I really do not like running more than one electrical extension cord together outside in the elements for any length of time. The joint where they plug into each other can get wet and potentially blow a fuse (or worse).

Of course, you can purchase a ready made weatherproof connection box or water-resistant plug-cover but in a pinch it can be nice to make your own. Follow these instructions to make your own electrical cord junction box and save yourself a few bucks!

Make a Simple Weatherproof Junction Box

Take a disposable food storage container and drill a hole in each side. Then cut a slit down to the hole. Tie the 2 extension cords together and plug them into each other as shown.


Feed both cords into the slits and holes that you created. Then put the cover on.


It makes a nice protective cover for your cords.


Obviously this junction box is not completely waterproof, so don’t let it sit in a puddle. Think of it as water resistant… But it does keep the weather out for the most part!


Check out my other Life Pro Tips for home maintenance!

Thanks for reading and have a good one!