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How To Get Rid Of Rats Under Decking How To Get Rid Of Rats Under Decking

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How To Get Rid Of Rats Under Decking

Written by: Oliver Mitchell

Learn effective methods to remove rats from underneath your outdoor-furniture decking. Keep your outdoor space clean and rodent-free with our expert tips.

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Welcome to our comprehensive guide on how to get rid of rats under decking. Decks are appealing additions to any outdoor space, providing a comfortable area to relax and enjoy the outdoors. However, they can also attract unwanted guests, such as rats. Rats are notorious for causing damage and spreading diseases, making it crucial to address this issue promptly.

In this article, we will walk you through a step-by-step process to effectively eliminate rats under your decking. From identifying the problem to implementing preventative measures, we will cover all the necessary information to ensure a rat-free environment.

Keep in mind that while these methods are effective for the removal of rats under decking, prevention is equally important. Taking proactive measures to discourage rats from accessing your deck in the first place will save you from future infestations.

So, without further ado, let’s dive into the first step in our rat eradication process: identifying the problem.

Step 1: Identify the Problem

The first crucial step in getting rid of rats under decking is to accurately identify the extent of the problem. Rats are intelligent and elusive creatures, making it important to carefully observe their activity to devise an effective eradication plan.

Here are some signs that indicate the presence of rats under your decking:

  1. Visible droppings: Rat droppings are small, dark, and pellet-shaped. Check for them along the areas where you suspect rat activity, such as near entrances or along the base of the deck.
  2. Gnaw marks: Rats have strong teeth that they use to chew through various materials. Look for gnaw marks on wood, plastic, or wires around the deck.
  3. Noises: Rats are notorious for making scratching, scurrying, and squeaking sounds. If you hear these noises coming from under your decking, it’s a clear indication of their presence.
  4. Nests: Rats create nests using any materials they can find, such as shredded paper, fabric, or insulation. Look for these nests in secluded areas under the deck.
  5. Tracks: Rats leave greasy marks or footprints on surfaces they frequently travel. Check for these tracks along the base of the deck or in dusty areas.

By thoroughly examining your deck and surrounding areas, you can determine the severity of the rat infestation. This information will help you determine the appropriate measures to take and the level of assistance you may need.

Once you have identified the problem, it’s time to move on to the next step: removing attractants.

Step 2: Remove Attractants

In order to effectively get rid of rats under decking, it’s important to eliminate any potential food or water sources that may be attracting them in the first place. Rats are opportunistic scavengers and will seek out places that provide easy access to sustenance.

Here are some steps you can take to remove attractants:

  1. Store food properly: Make sure any food sources, such as bird seed or pet food, are stored in airtight containers. Rats can easily chew through cardboard or plastic bags, so opt for sturdy containers to prevent access.
  2. Clean up fallen fruits or vegetables: If you have fruit trees or a vegetable garden near your deck, regularly clean up any fallen fruits or vegetables. Rats are attracted to these food sources and will make their way towards them.
  3. Dispose of garbage properly: Ensure that your garbage bins have tightly sealed lids to prevent rats from accessing them. Clean the area around the bins regularly to remove any food residue.
  4. Fix any plumbing leaks: Rats need water to survive, so fix any plumbing leaks or sources of standing water around your deck. Check for dripping faucets or pooling water and address the issue promptly.
  5. Keep the area clean: Regularly sweep and clean the deck and surrounding areas to remove any food scraps or debris that may attract rats. Pay attention to corners, crevices, and under furniture where food particles may accumulate.

By removing these attractants, you are effectively cutting off the rats’ food and water sources. This will make your deck and its surroundings less appealing to them, discouraging their presence and forcing them to seek sustenance elsewhere.

Once you have eliminated these attractants, it’s time to move on to step 3: sealing entry points.

Step 3: Seal Entry Points

Now that you have removed attractants, it’s time to address one of the most important aspects of rat removal: sealing entry points. Rats can squeeze through surprisingly small openings, so it’s essential to thoroughly inspect your deck and identify any potential entry points they may be using.

Here are some steps to follow to effectively seal entry points:

  1. Inspect the perimeter: Walk around your deck and closely examine the foundation and surrounding areas. Look for any cracks, gaps, or holes that rats could use to enter. Pay attention to areas where plumbing or electrical lines enter the deck, as these are common entry points.
  2. Fill gaps with steel wool: Use steel wool to fill any small gaps or holes you find. Rats are deterred by the rough texture of steel wool and will have a difficult time chewing through it.
  3. Apply caulk or foam sealant: For larger gaps or cracks, use caulk or foam sealant to fill them in. Make sure to choose a product that is rat-proof and weather-resistant.
  4. Repair damaged wood: If you notice any rotting or damaged wood, replace it promptly. Rats can easily gnaw through weakened or decaying wood, creating potential entry points.
  5. Install mesh or wire mesh: To prevent rats from accessing the underside of your decking, consider installing mesh or wire mesh along the perimeter. Make sure it is securely fastened and covers all openings.

By sealing entry points, you are effectively creating a barrier that prevents rats from accessing your deck. This step is crucial for long-term rat prevention and will significantly reduce the chances of reinfestation.

Once you have sealed entry points, it’s time to move on to step 4: setting traps.

Step 4: Set Traps

Setting traps is an effective method to catch and eliminate rats that are already present under your decking. There are various types of traps available, so you can choose the option that best suits your needs and preferences.

Here are some common types of traps for rat control:

  1. Snap traps: One of the most traditional and widely used traps, snap traps quickly and humanely kill rats when triggered. Place these traps along the pathways or areas where you have observed rat activity.
  2. Glue traps: Glue traps are sticky surfaces that rats get stuck to when they step on them. While not as lethal as snap traps, they can effectively capture rats. Check and replace the glue traps regularly to ensure their effectiveness.
  3. Live traps: If you prefer to catch rats alive and release them elsewhere, live traps are a humane option. Once captured, take the trap to a suitable location far away from your property and release the rats.

When setting traps, keep the following tips in mind:

  • Place traps strategically: Set traps along known rat pathways or near areas where you have found signs of their presence, such as droppings or gnaw marks.
  • Bait traps properly: Use bait that is attractive to rats, such as peanut butter, cheese, or dried fruit. For snap traps, secure the bait firmly to ensure rats trigger the trap when attempting to eat it.
  • Check traps regularly: Regularly inspect the traps to see if you have caught any rats. If successful, dispose of dead rats promptly and reset the traps.
  • Be cautious with placement: Take care when placing traps to ensure the safety of children, pets, and other non-target animals.

Keep in mind that setting traps alone may not completely eliminate an infestation. It is recommended to combine trap placement with other pest control measures for maximum effectiveness.

Now that you have set traps, it’s time to move on to step 5: using rat repellents.

Step 5: Use Rat Repellents

In addition to traps, using rat repellents can be a helpful addition to your rat eradication efforts. Repellents work by creating an environment that is unappealing or uncomfortable for rats, discouraging them from inhabiting the area under your decking.

Here are some effective rat repellents you can use:

  1. Peppermint oil: Rats dislike the strong scent of peppermint oil. Soak cotton balls in peppermint oil and place them strategically around the perimeter of your decking. Refresh the cotton balls with oil regularly for continued effectiveness.
  2. Mothballs: The strong smell of mothballs can deter rats. Place mothballs near entry points or areas of rat activity. However, use caution as mothballs contain chemicals that may be harmful to humans and pets.
  3. Ultrasonic repellents: Ultrasonic repellents emit high-frequency sound waves that are annoying to rats but are inaudible to humans. Place these devices near rat pathways or areas of activity.
  4. Natural predators: Encourage the presence of natural rat predators, such as owls or cats, in your outdoor space. This may help in deterring rats from under your decking.

While rat repellents can be useful, it’s essential to remember that they may not provide a complete solution on their own. It’s best to combine repellents with other rat control measures for optimal results.

Now that you have implemented rat repellents, it’s time to move on to the final step: considering professional pest control.

Step 6: Consider Professional Pest Control

If your efforts to get rid of rats under your decking have not been successful or if the infestation appears to be severe, it may be time to consider professional pest control services. Pest control professionals have the expertise, experience, and specialized tools to effectively handle rat infestations.

Here are some reasons why you might consider professional pest control:

  • Expertise: Pest control professionals have in-depth knowledge of rat behavior and biology. They can accurately assess the extent of the infestation and develop a customized treatment plan to effectively eliminate rats from your decking.
  • Safety: Rat control can involve handling hazardous substances, such as rat poisons or toxic chemicals. Pest control professionals are trained in safely handling these substances, protecting the safety of you, your family, and your pets.
  • Integrated approach: Professional pest control companies often employ an integrated pest management (IPM) approach. This involves a combination of strategies tailored to your specific situation, ensuring long-term prevention and control of rats.
  • Guaranteed results: Many pest control companies provide guarantees or warranties on their services. This means that if the rat problem persists after treatment, they will come back and address it at no additional cost.

When selecting a professional pest control service, make sure to choose a reputable company with a track record of success in rat control. Research their credentials, read reviews, and consider obtaining multiple quotes to find the best option that suits your needs and budget.

Remember, professional pest control should be seen as a last resort when other methods have failed or when the infestation is severe. It’s important to combine professional services with other rat control measures, such as sealing entry points and removing attractants, for long-term effectiveness.

With the completion of step 6, you have reached the end of our comprehensive guide on how to get rid of rats under decking. By following these steps and taking proactive measures to prevent rat infestations, you can ensure a rat-free and enjoyable outdoor space.

Good luck with your rat control efforts!


Dealing with rats under decking can be a nuisance, but with the right approach, you can effectively eliminate them and prevent future infestations. By following the steps outlined in this guide, you have learned how to identify the problem, remove attractants, seal entry points, set traps, use rat repellents, and consider professional pest control if necessary.

Remember that prevention is key to maintaining a rat-free environment. Regularly inspect your decking and surrounding areas for signs of rat activity, and take proactive measures to eliminate attractants and seal any potential entry points. By creating an environment that is less appealing to rats, you can significantly reduce the chances of infestation.

When using traps and repellents, carefully follow the instructions and take necessary precautions to ensure the safety of humans and other animals. Exercise patience and persistence, as rat control may require ongoing efforts to achieve long-term success.

If your rat problem persists or if the infestation appears to be severe, do not hesitate to seek professional pest control services. Pest control professionals have the knowledge and expertise to develop effective treatment plans, providing you with peace of mind and guaranteed results.

By addressing the issue of rats under your decking, you can create a clean, safe, and enjoyable outdoor space for yourself, your family, and your guests. Don’t let rats spoil your outdoor experience; take action and reclaim your decking from these unwanted pests.

We hope this guide has been helpful in guiding you through the process of getting rid of rats under decking. Good luck in your rat control efforts, and may your deck be rat-free for years to come!

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