Can Rats Chew Through Steel Wool? Here's What to Know

If you’ve noticed rats sneaking into your home, you may have heard that stuffing steel wool into small holes can help block them out.

But the big question is: can rats chew through steel wool?

The short answer is yes, but it’s not that simple.

Rats have powerful teeth capable of gnawing through various materials, but steel wool pads present a unique challenge.

Let’s break down the process, step by step, and see how rats manage to chew through steel wool—and why it might still be a solid rodent control solution for homeowners.

Key Takeaways

Rats can chew through steel wool if it’s not packed tightly enough into holes and gaps.
Loose steel wool strands are easy for rats to pull apart using their teeth and claws.
Wet or rusty steel wool becomes weak, making it easier for rats to chew through over time.
Professional pest control services are the best option if DIY methods don’t keep rats out.

CAN RATS BITE THROUGH STEEL WOOL?

Rats might be small, but their sharp teeth and determination can cause big problems—especially when it comes to chewing through barriers like steel wool.

So, how do they do it?

Rats Use Their Incisor Teeth to Start the Process

Rats have four sharp incisors that continuously grow, which is why they’re always gnawing. When faced with steel wool, a rat will first try to bite through the fibers using these teeth.

Unlike chewing through wood or plastic, wire wool is tough and abrasive, making it harder for rats to get a good grip. However, if the steel wool pads aren’t packed tightly enough into an entry point, they can start pulling them apart by nibbling at the edges.

DIY Tip for Homeowners

To make it harder for rats to get through, tightly place steel wool into small openings like dryer vents, crevices around fireplaces, or gaps near electrical wiring.

For added protection, secure the steel wool using caulk or another strong sealant, or call the pros.

Rats Pull Apart Loose Steel Wool Strands

Steel wool is made of thin metal strands woven together.

If these strands are loosely packed, rats can grab onto them with their teeth and claws, slowly pulling them apart.

Over time, they may remove enough strands to widen the hole and squeeze through. This process takes longer compared to materials like drywall or wood, but determined critters can still manage it.

Pest Control Tip

Use stainless steel wool or copper wool, as these materials are more durable and less likely to rust or break down.

Unlike regular steel wool, stainless steel wool and copper mesh are more resistant to moisture, making them great for sealing gutters, crawl spaces, and holes near heaters.

Rats Chew Through Softened or Compromised Steel Wool

If steel wool becomes wet or exposed to the elements, it can rust and weaken over time, making it easier for rats to chew through. The metal fibers may also break down if mixed with certain sealants that cause corrosion.

Once the grade steel wool weakens, rats can use their strong jaws to chew through the remaining strands and create an entry point.

Home Improvement Tip

Combine steel wool with caulk or another weather-resistant sealant when sealing gaps around dryer vents, fireplaces, and other openings.

For larger gaps, use wire mesh or copper mesh, secured with a screwdriver and screws. This makes it harder for these critters to chew through or remove the material.

Rats Persist Until They Find a Weak Spot

Rats are persistent.

If they sense food sources or warmth inside your home, they’ll keep trying to get through until they succeed. Even if they can’t fully chew through steel wool, they might push it aside or pull it out if it’s not securely packed.

That’s why steel wool should be part of a comprehensive rat control plan rather than a standalone solution.

Repellent Tip

For added protection, use natural repellents with smells they hate. Like peppermint oil near potential entry points, its strong scent can help deter these critters.

However, repellents are most effective when combined with physical barriers like steel wool pads, copper mesh, and wire mesh.

SHOULD YOU USE STEEL WOOL FOR RODENT CONTROL?

While rats can technically chew through steel wool, it’s still an effective deterrent when used correctly. The rough texture irritates their teeth and gums, making them less likely to persist unless they’re extremely determined.

However, if DIY methods aren’t working and you’re dealing with a full-blown rat infestation, it’s best to call a professional handyman or exterminator.

At LaJaunie’s Pest Control, we offer same-day service to help you quickly and effectively seal entry points, place steel wool, and eliminate unwanted critters before they cause more damage.

Need help with rodent control?