Looking for ways to make your garden more private or secure? Sometimes, the fence you have just isn’t quite tall enough. Finding good fence height extension ideas can solve this problem without the cost of a full replacement.
You have several creative and practical options. From adding trellises to building custom toppers, you can increase privacy, block wind, and keep pets safe. This guide will walk you through the best methods, considering both looks and function.
Fence Height Extension Ideas
The right extension depends on your fence material, your budget, and your skill level. Always check your local building codes and property lines before starting any project. It’s also a good idea to talk to your neighbors about your plans.
1. Wooden Lattice or Trellis Toppers
This is one of the most popular and attractive solutions. A wooden lattice panel is lightweight and allows some air and light through while adding height.
* Materials: You can buy pre-made lattice panels or build a simple grid yourself using thin wood strips.
* Installation: Attach the lattice directly to the top of your existing fence posts using galvanized screws or brackets. For a stronger hold, you may need to extend your posts first.
* Style Tip: Let climbing plants like clematis, jasmine, or sweet peas grow up the lattice for a beautiful, living green wall.
2. Post Extenders with New Rails
For a solid, permanent extension, extending the posts is the most robust method. It’s ideal for wooden privacy fences.
Here’s a simplified step-by-step:
1. Measure and cut new post sections (often 4×4 lumber) to your desired extension height.
2. Use metal post extension brackets to secure the new piece directly on top of the existing fence post. Make sure it’s perfectly plumb.
3. Attach new horizontal rails between the extended posts.
4. Finally, add your new vertical pickets or panels to fill in the space between the new rails.
Important Safety Note
This method changes the wind load on your fence. Ensure the original posts are deeply set and in good condition. In very windy areas, you might need professional advice.
3. Bamboo or Reed Screening
For a quick, natural-looking boost, bamboo rolls are a fantastic choice. They are relativly inexpensive and easy to install.
* How it Works: You attach a horizontal rail along the top of your fence. Then, you unroll the bamboo screening and fasten it to the rail and your existing fence using zip ties or wire.
* Benefits: It provides instant privacy and has a relaxed, organic feel. It’s also great for covering up an ugly chain-link fence.
* Consideration: Bamboo can last for years, but it will eventualy fade to a silvery-grey. You can use a sealant to prolong its life.
4. Planter Box Toppers
Combine height with gardening space! Building a planter box that sits on top of your fence adds both beauty and function.
* Construction: Build a long, shallow box from rot-resistant cedar or redwood. Ensure it has drainage holes.
* Mounting: Securely bolt or bracket the planter box onto the top of the fence structure. It must be very stable.
* Planting: Fill with soil and plant trailing flowers like petunias or herbs. The plants will grow up and over, adding softness and extra height.
5. Metal or Wire Extensions
If security is your main goal, especially for keeping dogs in, metal extensions are very effective.
* Options: You can use welded wire mesh, decorative metal panels, or simple galvanized steel bars.
* Installation: Attach the metal material to wooden battens fixed to your fence. For a cleaner look, you can sink metal rods into the post tops and run wire between them.
* Finish: Paint the metal to match your fence and prevent rust. This creates a barrier that’s difficult for pets to climb.
6. Living Fence Extensions
Sometimes, the best extension isn’t built, it’s grown. Using plants is a purely natural solution.
* Fast-Growing Shrubs: Plant tall, columnar shrubs like arborvitae or bamboo (clumping varieties only!) directly behind your fence line. They will grow up to fill the space above it.
* Espaliered Trees: Train fruit trees or ornamental shrubs to grow flat against a support system attached to your fence. Over time, they create a dense, living wall.
* Annual Vines: For a temporary summer screen, grow morning glories or runner beans up strings or netting attached above the fence.
Choosing the Right Materials
Your choice will impact the longevity and look of your project. Always use outdoor-rated materials.
* Wood: Pressure-treated, cedar, or redwood are best for durability. Remember to apply a protective stain or sealant.
* Fasteners: Use galvanized, stainless steel, or coated screws and nails to prevent unsightly rust stains.
* Brackets: Metal post brackets and joist hangers make construction stronger and easier.
Key Considerations Before You Start
A successful project requires a bit of planning. Don’t skip these steps.
* Local Regulations: Many areas have strict rules on fence height, typically limiting backyard fences to 6 feet and front yard fences to 4 feet. Your extension will likely count toward this total height.
* Neighbor Communication: It’s courteous to discuss your plans with adjacent neighbors. A friendly chat can prevent disputes later on.
* Wind Load: Any extension, especially a solid one, will catch more wind. Make sure your existing fence posts and foundations are sturdy enough to handle the extra pressure.
* Maintenance: Think about future upkeep. A complex extension might make routine staining or painting of your original fence more difficult.
Adding height to your fence is a very achievable DIY project. By selecting the idea that best fits your needs, skills, and style, you can gain the extra privacy, security, and beauty you want for your outdoor space. Remember to take your time with planning and installation for a result that looks professional and lasts for years.
FAQ: Fence Height Extensions
Q: What is the cheapest way to extend a fence height?
A: Using bamboo or reed screening rolls is often the most budget-friendly option. It’s also one of the simplest to install yourself in just an afternoon.
Q: Can I add height to a vinyl fence?
A: Yes, but it’s trickier. You can use vinyl post extensions and compatible rails made by your fence’s manufacturer for a seamless look. Lattice designed for vinyl is another good option that won’t require altering the posts.
Q: How can I make my fence taller for dog security?
A: A metal wire or mesh extension is very effective. Create an inward-facing overhang (like a coyote roller) at the top, which makes it nearly impossible for most dogs to get a grip and climb over.
Q: Do I need a permit to extend my fence height?
A: In most municipalities, yes. Any change that increases your fence’s overall height usualy requires a permit to ensure it complies with local zoning laws. Always check with your local building department first.
Q: What plants are best for a quick-growing screen?
A: For fast results, consider annual vines like hyacinth bean or cypress vine. For a permanent solution, fast-growing shrubs like laurel or certain types of privet can work well, but be sure to choose non-invasive species for your area.