How to Keep Bugs From Coming Through Deck Boards

Deck boards are a common entry point for bugs and other pests into your home. They are gross, but they can also be a nuisance, especially if you’re trying to enjoy time outdoors. In this post, we’ll give you some tips on how to keep bugs from coming through deck boards.

How to Keep Bugs From Coming Through Deck Boards

Luckily, there are some simple things you can do to help keep bugs from coming through your deck boards and into your home. These tips will help seal off any gaps between the boards and prevent moisture damage that can lead to rot. So follow these steps to keep your deck bug-free!

What is the Problem?

Bugs love to make their homes in the small gaps between deckboards. They can squeeze through even the tiniest of cracks and then build nests or lay eggs, causing a major infestation. Not only are these bugs unsightly, but they can also carry diseases and cause damage to your property.

In addition to being an annoyance, bugs that come through deck boards can also cause structural damage to the deck itself. When bugs make their homes in between the boards, they can cause moisture to build up, leading to rot and weakening of the wood. This can be dangerous for anyone walking on the deck and may require costly repairs.

Needed Materials:

Before we get into the tips, here are some materials you’ll need to keep bugs from coming through your deck boards:

Caulk or Sealant:

You’ll need a caulk or sealant to fill in any gaps between the deck boards. Make sure to choose a waterproof and weather-resistant option.

Insect Screening:

Insect screening is essential for keeping bugs out of your deck. You can find this at most hardware stores or online. Look for a screen with small mesh openings that will prevent bugs from entering.

Deck Stain or Seal:

A deck stain or seal will not only help protect your deck from moisture but also make it harder for bugs to burrow into the wood. Choose a product that is specifically formulated for outdoor use and provides long-lasting protection.

8 Reasons That Causes Bugs to Keep Coming Through Deck Boards:

1. The Wood Is Not Properly Sealed:

If your deck boards are not properly sealed, they can act as an open invitation for bugs. So, make sure to fill your deck before using it to help keep bugs from coming through. You can use a sealant or stain to protect the wood and prevent bugs from burrowing into it.

2. There Are Cracks or Gaps in the Deck Boards:

If there are any cracks or gaps in your deck boards, bugs will be able to get through easily. So be sure to check your deck boards regularly for any cracks or gaps and repair them as soon as possible.

Clean Deck Regularly

3. The Deck Boards Are Too Close Together:

Bugs can easily squeeze through the cracks if the deck boards are too close together. So, be sure to leave enough space between each deckboard to prevent this from happening.

4. The Deck Is in a Shady Area:

Shady areas are more likely to attract bugs. If your deck is in a shady area, be sure to take extra precautions to keep bugs from coming through the deck boards. One way to do this is to use a sealant on the deck boards to help keep bugs out. You can also use a bug spray or citronella candles to keep bugs away.

5. The Deck Is Not Regularly Cleaned:

A dirty deck is more likely to attract bugs. Be sure to clean your deck regularly to prevent an infestation. Cleaning a deck is not difficult, but it is important to do it right. Use a deck cleaner or wood soap and a stiff brush. Rinse the deck well afterward to remove all of the cleaners.

6. The Deck Is in a Wet Area:

Wet areas are more likely to attract bugs. If your deck is in a wet area, be sure to take extra precautions to keep bugs from coming through the deck boards. One way to do this is to use a sealant on the deck boards. Another way to keep bugs from coming through deck boards is to use a screen underneath the deck. This will help to keep the area under the deck dry and free of bugs.

7. Food or Trash Around the Deck:

If there is food or trash around the deck, it will attract bugs. Make sure to sweep and clean up any food or trash around the deck to keep the bugs away. Also, be sure to keep garbage cans away from the deck area.

8. The Deck Is Near a Pond or River:

Ponds and rivers are a common habitat for bugs. If your deck is near a pond or river, take extra precautions to keep bugs from coming through the deck boards. One way to do this is to use a sealant on the deck boards to help keep bugs out. You can also use a bug spray or citronella candles to keep bugs away.

10 Effective Ways How to Keep Bugs From Coming Through Deck Boards:

1. Use Caulk or Sealant:

Sealant is a crucial part of any deck-building project. Make sure to use it around the perimeter of your deck boards and in any cracks or crevices. This will help keep bugs from crawling through and invading your deck space. You can also use a sealant to protect the wood from moisture, which can attract bugs.

2. Install screening:

Another great way to keep bugs out is by installing screening around the perimeter of your deck. This will create a barrier that will make it difficult for bugs to get through. You can either install screening yourself or hire a professional to do it for you. It’s a great investment to keep your deck bug-free.

3. Use a Bug Barrier:

There are also products specifically designed to keep bugs from coming through deck boards. For example, a bug barrier is a great way to ensure that your deck is insect-free. The barrier is made of a fine mesh material that is placed between the deck boards. This will prevent bugs from entering while still allowing water and air to circulate.

4. Keep Your Deck Clean:

One of the best ways to keep bugs away is simply keeping your deck clean. Sweep up any debris and keep food and drinks off of the deck surface. Bugs are attracted to food and trash, so keeping a clean deck will make it less appealing for them to invade. You can also use natural bug repellents like citronella candles or essential oils to keep bugs away.

Use Sealant Around the Perimeter

5. Trim Your Plants:

If you have plants near your deck, keep them trimmed. Bugs love to hide in tall grass and bushes, so trimming back your plants will help to reduce the bug population around your deck. You can also use plants that naturally repel bugs, such as lavender or marigolds. It will add a nice touch to your deck while keeping bugs at bay.

6. Use Lights:

If you’re having trouble with bugs, try using lights. Bugs are attracted to light, so you can discourage them from coming nearby by placing lights near your deck. You can either use lights built into the deck or place standalone lights around the perimeter of the deck. But be sure to use yellow or amber lights, as they are less attractive to bugs.

7. Use a Fan:

Another way to deter bugs is by using a fan. The air movement will help to keep bugs from landing on your deck and getting inside. You can use a standalone fan or attach to your deck. If you live in an area that gets a lot of bugs, you may want to consider using multiple fans. These will also help to keep you cool on hot summer days!

8. Use Natural Repellents:

There are several plants that bugs don’t like, and you can use these to your advantage by planting them around your deck. Some good options include citronella, catnip, and marigolds.

You can also make your natural repellent by mixing equal parts water and vinegar in a spray bottle and adding a few drops of any essential oil that bugs don’t like (such as lavender, peppermint, or rosemary).

9. Store Firewood Away From Your Home:

If you have firewood stored near your home, keep it away from your deck. Bugs love to hide in woodpiles, and if they make their way onto your deck, they can cause a lot of trouble. Keep firewood at least 20 feet away from your home, and make sure to inspect it for bugs before bringing it inside. It’s also a good idea to cover your firewood with a tarp to keep bugs away.

Placing Lights Near the Deck

10. Inspect Your Deck Regularly:

The best way to keep bugs away is by inspecting your deck regularly and taking care of any problems as soon as they arise. If you catch a bug problem early, it will be much easier to deal with. Check for any cracks or gaps in the deck boards, and make sure there is no standing water on or under the deck. Regular maintenance will not only keep bugs away but also extend the life of your deck. 

Following these tips on how to keep bugs from coming through deck boards will help you keep bugs from coming through deck boards and enjoy your outdoor space without any unwanted guests. Remember to be proactive in preventing bug infestations, as it is much easier to prevent them than deal with them once they have already invaded your deck.

Tips to Prevent Bucks From Coming Through Deck Boards:

Here, we have given some tips on how to keep bugs from coming through deck boards

1. Use a caulk gun to apply insecticide around the deck’s perimeter.

2. Inspect the deck regularly for cracks or gaps and seal them promptly.

3. Keep the area around the deck clean and free of debris.

4. Store firewood away from the deck and trim back any vegetation that touches it.

5. Install a screened-in deck to keep insects out.

6. Inspect the deck regularly and treat it with a pesticide-resistant sealant if necessary.

7. Cover the deck with a tarp to keep bugs from getting under the boards when not in use.

8. Hire a professional pest control company to treat the area around the deck regularly.

How Do You Bug Proof a Deck Floor?

There are a few things you can do to help keep bugs from coming up through your deck boards:

1. Use a suitable sealant on the decking boards. This will help to keep out moisture, which can lead to rot and bug infestations.

2. Install a barrier between the decking and the ground. This can be done with a simple piece of wire mesh or with a more elaborate system like plastic lattice or paver blocks.

3. Keep the deck well-maintained and free of debris. Leaves and other organic matter can provide a home for bugs and create moisture problems that will lead to rot.

4. Regularly inspect the deck for signs of bug infestation. If you see any evidence of bugs, take steps to get rid of them as soon as possible.

5. Talk to a professional about getting your deck treated with a bug-resistant coating. This can be an effective way to keep bugs from coming up through the decking boards and help protect the wood from rot and other damage.

If you follow these tips, you can help to keep your deck bug-free and looking great for years to come!

How Do You Screen Under a Deck?

One way to keep bugs from coming through your deck boards is to screen under the deck. This can be done by creating a frame out of 2x4s and attaching chicken wire or hardware cloth.

The frame can then be attached to the bottom of the deck joists. You can also create a screened-in porch under your deck by adding a roof and walls. This will keep bugs and other pests out while still allowing you to enjoy the outdoors.

Give Barrier Between Deck & Ground

Frequently Asked Questions:

Q: How Can I Improve My Writing Skills?

A: Improving your writing skills takes practice and dedication. Here are a few tips to help you get started:

Read Regularly:

Reading not only exposes you to different styles of writing but also helps you expand your vocabulary and improve your grammar. Make it a habit to read something every day – whether it’s a book, newspaper, or online article.

Write Every Day:

As with any skill, practice makes perfect. Set aside time each day to write. It could be anything from journaling to writing short stories or even just jotting down your thoughts and observations. The more you write, the better you’ll become.

Get Feedback:

Seek feedback from others – whether it’s a friend, family member, or professional editor. Constructive criticism can help you identify areas for improvement and fine-tune your writing skills.

Take Writing Courses:

Consider taking a writing course or workshop to learn about different techniques and styles of writing. You can also join a writing group to get feedback and support from other writers.

Practice, Practice, Practice:

The key to improving your writing skills is to keep practicing. Write regularly, seek feedback, and continue learning new techniques – over time, you’ll see significant improvement in your writing.

Q: How Can I Avoid Writer’s Block?

A: Writer’s block is a common struggle for many writers, but there are ways to overcome it. Here are some tips:

Take Breaks:

If you’re feeling stuck, take a break and do something else. This could be taking a walk, listening to music, or engaging in another creative activity. Oftentimes, stepping away from your writing can help clear your mind and spark new ideas.


Set a timer for 10-15 minutes and write whatever comes to mind without stopping. This can help get your creative juices flowing and break through any mental blocks.

Change Your Environment:

Sometimes, a change of scenery can do wonders for overcoming writer’s block. If you usually write at home, try going to a coffee shop or library if you’re able to, take a trip somewhere new and use that as inspiration for your writing.

Talk it Out:

If you’re struggling with a particular writing project, try talking through it with someone else. They may be able to offer a fresh perspective or help you brainstorm ideas.

Don’t Be Too Hard On Yourself:

Remember that writer’s block is a natural part of the writing process. Don’t beat yourself up if you’re feeling stuck. Instead, be patient and kind to yourself – it’s all part of the journey.  Keep practicing and trying new techniques, and eventually, you’ll break through that writer’s block.

Q: How Important is Editing in the Writing Process?

A: Editing is an essential step in the writing process. It involves reviewing and revising your work to ensure clarity, coherence, and effectiveness. Here are some reasons why editing is crucial:

Improves Quality:

Editing allows you to refine your ideas and improve the quality of your writing. By carefully reviewing your work, you can identify areas that need clarification or expansion.

Ensures Accuracy:

Through editing, you can catch any grammatical errors, spelling mistakes, or inconsistencies in your writing. This helps to ensure that your work is error-free and presents a professional image.

Enhances Clarity:

Editing also helps to improve the overall clarity of your writing. By re-reading and revising, you can identify any confusing or unclear passages and make necessary changes to improve understanding.

Polishes Your Style:

Editing allows you to fine-tune your writing style and ensure consistency throughout your work. This helps to create a cohesive and polished piece of writing that is engaging and effective.


If you take the time to seal your deck properly, it will be less susceptible to bugs and other pests. Applying a sealant every two years is usually enough to keep your deck in good condition.

Make sure you use a quality product to penetrate the wood and create a barrier against moisture and insects. By following these simple steps on how to keep bugs from coming through deck boards, you can protect your investment and keep your deck looking great for years to come.

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Angela Ervin

Angela Ervin

Angela is the executive editor of DIY quickly. She began her career as an interior designer before applying her strategic and creative passion to lifestyle and home. She has close to 15 years of experience in creative writing and online content strategy for housekeeping, home decorations as well as other niche efforts. She loves her job and has the privilege of working with an extraordinary team. She lives with her husband, two sons, and daughter in Petersburg. When she's not busy working she spent time with her family.

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