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An image of a garage that's been opened up.
Marc Dufresne/istockphoto
While garages are generally intended for car storage, there are plenty of folks ready to use their garages to store just about anything you can think of. We’re talking bikes, chairs, couches, free weights, freezers, fridges, etc. 

So yes, sure, garages are an efficient space to store belongings. But you want to make sure that you’re not storing stuff in your garage that can cause unnecessary hazards, attract pests, or invite other dire consequences.

1. Oily Rags

The dirty greasy fabric, matter olorless. Fabric stained texture. Contaminated textile or canvas
bin kontan/istockphoto

Absolutely never store rags that are oil-soaked in your garage. In the instance of a spontaneous combustion, oily rags can increase the risk of a catastrophic fire that will likely spread to your home.

Related: 10 Costly Home Repairs Your Insurance Might Not Cover

2. Pet Food

Dry kibble pet food. Dog or cat food on the old table. Top view.
jirkaejc/istockphoto

You’re not alone if you’re someone who prefers to store dog, cat, or other pet food in your garage. However, if you choose to do so, make absolutely sure the pet food is stored in a tightly sealed plastic or a metal container. Otherwise, you’ll run the greatly heightened risk of having unwanted rodents easily chewing through the paper or the cardboard packaging. 

3. Sleeping Bags

A pair of sleeping bags
SorenP/istockphoto

As a general rule of thumb, changing temperature as well as humidity fluctuations are in no way optimal when it comes to storing fabric. Mold can generate quickly, and rodents will love to feast on that fabric as well. Resist the temptations to store your sleeping bags and other camping supplies in your garage. Instead, err on the cautious side, and store those items elsewhere in the home.

4. Old Computers

Laptop isolated on a white background at an angle with an empty black screen
Alexander Bashkirov/istockphoto

Just as fluctuating temperatures in a garage can unleash damage upon camping supplies, so can they alter the functionality of older computers. Too many temperature climbs and dips can result in your older electronics shorting out. Nobody wants to deal with the costs associated with replacing electronics in these pricey times.

5. Essential Papers And Files

US Passport on white background
Peter Togel/istockphoto

Never store your important paperwork and files like medical records, passports, and birth certificates in your garage. The humidity levels as well as the overall moisture in there can result in damage to those documents. Documents, mind you, that are very hard to replace.

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6. Wine

Closeup shot of wineshelf. Bottles lay over straw.
ValentynVolkov/istockphoto
Especially around this time of year, when plenty of folks are stocking up on wine, it’s particularly ill-advised to keep those wines stored in your garage. The culprit? If you guessed temperature and humidity fluctuations, you’d be correct. Those things can affect the quality of the wine and even degrade corks.

Instead, consider investing in a proper wine rack or fridge where you can store your wines safely inside your home. As an added plus, that’ll save you the extra steps necessary to venture outside to grab more bottles when the time calls for it.

7. Canned Goods

7. Canned Goods
NoDerog/istockphoto

This one might seem counterintuitive, as canned goods are by their very nature built to sustain all kinds of formidable external conditions. However, were you to stockpile canned goods in either a very hot or very cold garage (or both throughout a year), you run the risk of your canned goods literally exploding. That’s just a waste of money and a complete mess that nobody wants to deal with.

8. Pressure Washers

Pressure Cleaning with High Pressure Washer Karcher in Garden Park or Street. Cleaning Pavement Service concept.
Maryana Serdynska/istockphoto

Pressure washers are an invaluable and occasionally pricey investment made by many homeowners. The last thing you want to deal with is having your pressure washer be taken out of commission due to the water in the pressure washer’s lines freezing over. So, if you can’t find a temperature-controlled space in your home to store your pressure washer, make sure the water line is fully cleared out.

Related: Redditors Share Their Best Money-Saving Tips for New Homeowners

9. Lithium Ion Batteries

Demounted battery fromvehicle Nissan Leaf with zero emission . Cells of high voltage electric car batterie. Service station. May, 2019. Kiev, Ukraine.
Lipik1/istockphoto

Many modern appliances run on pricier rechargeable batteries (thank goodness), but it’s essential to not store those batteries in a garage with fluctuating temperatures. Whether the temperature climbs to scorching heights or dips to a bone-chilling cold, you can rest assured that your lithium ion batteries will not survive such an expedition.

Related: 5 Things to Know About Your Car Battery

10. Musical Instruments

Group of classic musical guitar instruments on display in a music shop. Classical vintage acoustic guitars of a instrument made from art wood hanging on a rack in a new indoor local store.
Dean Mitchell/istockphoto

For many, musical instruments can become deeply sentimental attachments that one would never want to run the risk of losing. So, consider just how big of a no-no it is to even think about storing your prized guitar, bass, etc, in your garage. Too much humidity and/or extreme temperatures can ruin those stunning finishes or otherwise degrade your favorite musical instruments.

Meet the Writer

Matt has spent the last 8 or so odd years as both a writer and editor in Seattle and Brooklyn, where he is now based. He loves escaping the tirelessly fast pace of the “Mad Apple” that is NYC by taking walks and runs through parks where he’s able to catch up on the latest tea about society from the city’s ever chatty, always hungry, occasionally rabid, pigeons. When he’s not taking his urban nature strolls, or dutifully combing the deepest rabbit holes of the internet to find the content that’s worth sinking your mind’s teeth into, he’s likely holed up at a dark-lit dive bar with a book and/or some friends, or just easily he could be on the hunt for the next addition to his steadily growing plant family.