DIY Rat-Proofing: How to Stop Rats Under Decking in the UK

Discovering rats under your decking can be a distressing experience, but don't let panic drive you to call an exterminator just yet. With the right tools and knowledge, you can tackle this DIY project and keep your outdoor space rat-free. This guide will walk you through how to stop rats under decking in the UK, from understanding their behaviour to implementing effective deterrents and proofing methods.

Before we dive into the solutions, it's essential to understand why rats are attracted to your decking. Rats are intelligent, adaptable creatures that seek shelter, food, and water. Your decking, with its warm, dry spaces and potential access to nearby food sources, can seem like an ideal home to them. By addressing these attractions, you can make your decking less inviting to rats.

Identifying Rat Activity Under Your Decking

Before you start your DIY rat control project, it's crucial to confirm that you indeed have rats under your decking. Rats leave behind distinct signs, such as:

• Droppings (about 12-18mm long, with blunt ends and a capsule shape)
• Gnaw marks on wood, cables, or other materials
• Nests made from shredded materials like cardboard or insulation
• Rub marks (greasy smears left by their fur as they navigate along walls or beams)

Once you've confirmed the presence of rats, it's time to take action.

Excluding Rats from Your Decking

Preventing rats from entering your decking in the first place is the most effective way to keep them at bay. This process, known as proofing, involves sealing off entry points and blocking potential access routes.

Inspect your decking thoroughly for any gaps, holes, or cracks that rats could squeeze through. Common entry points include:

• Gaps between decking boards
• Holes drilled for cables or pipes
• Weak or damaged joists
• Gaps under the decking where it meets the ground

Use appropriate materials to seal these entry points, such as:

• Hardware cloth or galvanised mesh for larger gaps
• Expanding foam or caulk for smaller cracks and holes
• Sheet metal or solid wood for larger areas

Pay particular attention to any gaps under the decking, as rats can enter through these spaces. You can block these gaps using hardware cloth, heavy-duty plastic, or even metal flashing.

Deterring Rats from Your Decking

While proofing your decking is essential, deterring rats can provide an extra layer of protection. Rats have a keen sense of smell and are sensitive to certain scents. By using natural repellents, you can make your decking less appealing to rats.

Some effective natural rat repellents include:

• Essential oils like peppermint, eucalyptus, and citronella
• Coffee grounds
• Garlic
• Bay leaves
• Hot peppers

To use these repellents, simply sprinkle or place them around the perimeter of your decking, focusing on potential entry points. You can also soak cotton balls in essential oils and place them in small, secure containers around your decking. Remember to reapply these repellents regularly, as their effectiveness can diminish over time.

Dealing with Rats Already Living Under Your Decking

If you've found evidence of rats already living under your decking, you'll need to take additional steps to remove them before proofing and deterring. Live trapping and baiting are two common methods for removing rats from your property.

Live Trapping Rats

Live trapping involves using humane traps to catch rats alive, allowing you to release them far away from your property. This method is preferred by many as it avoids the use of poisons, which can pose risks to pets, wildlife, and the environment.

To live trap rats, follow these steps:

1. Choose a suitable trap, such as a Havahart or similar live catch trap
2. Bait the trap with an attractive food source, like peanut butter or a piece of fruit
3. Place the trap near signs of rat activity, such as droppings or rub marks
4. Check the trap regularly, and once caught, release the rat at least 1 mile away from your property

Repeat this process until you no longer see signs of rat activity under your decking.

Baiting Rats with Poison

Baiting involves using poisoned bait to kill rats. This method should be used with caution, as poison can pose risks to non-target animals and the environment. Always follow the manufacturer's instructions carefully when using rat poison.

To bait rats, place poisoned bait stations near signs of rat activity. Ensure the bait stations are secure and inaccessible to children and pets. Monitor the bait stations regularly, and once rats have been eliminated, dispose of any remaining poison according to the manufacturer's instructions.

Regularly maintaining your decking and surrounding area can help prevent future rat infestations. Keep your decking clean and free of debris, trim back any overgrown vegetation, and store trash and recycling bins securely. By staying vigilant and taking proactive measures, you can keep your outdoor space rat-free and enjoyable.

Embarking on a DIY rat control project may seem daunting, but with the right knowledge and tools, you can successfully stop rats under your decking. By understanding rat behaviour, implementing effective deterrents, and proofing your decking, you can create an unwelcoming environment for these pests. So, grab your tools and get started on your rat-free decking today!