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<p>Our Houdini-Proof Dog Containment System is a fence extender for dogs designed to stop them from <a href="https://www.dogproofer.com/blogs/resources/how-do-dogs-jump-over-fencing?_pos=8&_sid=7ef64f283&_ss=r">jumping</a> and/or climbing an existing fence that is 4' or taller. The key to this fence extension kit is the unique patented design of our fence extender arms. </p>
<p>These fence toppers for dogs can increase the overall height of your fence by two additional feet. The curved top creates an arch over the fence that stops the dog’s forward momentum and prevents them from jumping and/or climbing over the fence. </p>
<h3>Works on Nearly Any Fence Type</h3>
<p text-align:center=""><img src="https://cdn.shopify.com/s/files/1/0019/5513/5543/files/types-of-fence-systems.webp?v=1662659045" alt="Types of fence systems" style="display: block; margin-left: auto; margin-right: auto;" width="943" height="208" loading="lazy" data-mce-style="display: block; margin-left: auto; margin-right: auto;"></p>
<p>The curved extension arms of our fence extender for dogs can attach to most walls and fence types, including, but not limited to, wood, chain link, wire-backed split rail, decorative aluminum/wrought iron, PVC/vinyl fence, and masonry walls.</p>
<h3>Durable, Purpose-Built Components</h3>
<p>The Houdini-Proof fence topper for dogs is made of formed 1 ⅜” diameter, 16 gauge galvanized steel tubing. It reaches over the fenced area 20” and can be set to raise the fence height as high as two additional feet. Two thick, steel mounting plates are welded to the base portion of each arm, and the entire arm is finished with a UV stable black powder coating. </p>
<p><em>See the "Kit Contents" Tab for information on what is included in each kit size.</em></p>
<h3>Mesh Fencing Options</h3>
<p>Included in the fence extension kit is your choice of either our Durable Poly Fencing Material or, as an upgrade, we offer black vinyl-coated galvanized Heavy-Duty Welded Wire instead.</p>
<p>The <em>Durable Poly Mesh </em>fence extender for dogs is a very strong polypropylene plastic with UV inhibitors that will withstand a dog jumping into it repeatedly. However, this component will not hold up to a dog that will grab and rip at the fence with its claws or teeth. The poly mesh is a flexible material with square openings measuring 1.7” x 1.7”. The individual wires have a diameter of about 2.0-2.2mm. The advantage of using a fence topper for dogs with poly fencing is that it is easier to install and less costly than the upgraded, heavy-duty welded wire fencing material.</p>
<p>The <em>Heavy-Duty Welded Wire Mesh Fencing</em> is recommended for dogs that regularly test the fence with claws and/or teeth. This type of fence extender for dogs offers some flexibility, but it is more rigid compared to the poly mesh fence extension kit. It also has square openings that measure 1.7" x 1.7". Additionally, the welded wire is considered more durable overall ⏤ made with black vinyl-coated galvanized steel for added longevity outdoors. The welded wire is heavier in weight and a bit more difficult to install than the poly mesh fence topper for dogs. But it is the right product if you are concerned about your dog repeatedly and persistently testing the fence extension system.</p>
<h3>Combine Fencing Solutions</h3>
<p>A <a href="https://www.dogproofer.com/collections/create-new-fence-line">Freestanding DIY Dog Fence</a> can be used to build a new fence line from the ground up and create a standalone enclosure for your dog. But did you know it can work with your existing fence too? Create a barrier across a walkway, use it as a partition to divide a yard or keep dogs separated, or use part of your existing fence to create an enclosure within the yard. Freestanding fencing solutions can even be used alongside your fence extender for dogs.</p>
<p>Gaps in your fence line? Incomplete perimeter fence? Or maybe a shared fence with your neighbor that you can’t modify? Fill in the gaps with our<a href="https://www.dogproofer.com/collections/create-new-fence-line"> Freestanding DIY Dog Fence</a>!</p>
<p>Dog going over AND under the fence? Consider adding our<a href="https://www.dogproofer.com/products/dig-proofer-kit-for-preventing-digging-under-fence"> Dig Proofer</a> system to your setup!</p>
<p>Do you want to combine our fence toppers for dogs with a dig proofer system? Read more about how you can <a href="https://www.dogproofer.com/blogs/resources/combining-dog-proofer-fencing-solutions">combine Dog Proofer systems</a> to create a safe outdoor space for your dog.</p>
<h3>Important</h3>
<p>If you have a very large and powerful dog you consider extremely aggressive, a very large enclosure, or other special circumstances, please contact us by email or call <a href="tel:888-211-0617">888-211-0617</a> to discuss the best fence extension kit for your dog.</p>
<h5>Kit Contents</h5>
<table class="dcf-table dcf-table-responsive dcf-table-bordered dcf-table-striped dcf-w-100%">
<caption></caption>
<thead>
<tr>
<th scope="col" data-label="Houdini Dog Fence Extension System">Houdini Dog Fence Extension System</th>
<th scope="col" data-label="50 Foot Kit">50 Foot Kit</th>
<th scope="col" data-label="100 Foot Kit">100 Foot Kit</th>
<th scope="col" data-label="150 Foot Kit">150 Foot Kit</th>
<th scope="col" data-label="200 Foot Kit">200 Foot Kit</th>
<th scope="col" data-label="250 Foot Kit">250 Foot Kit</th>
<th scope="col" data-label="300 Foot Kit">300 Foot Kit</th>
<th scope="col" data-label="350 Foot Kit">350 Foot Kit</th>
<th scope="col" data-label="400 Foot Kit">400 Foot Kit</th>
</tr>
</thead>
<tbody>
<tr>
<th scope="row" data-label="Houdini Dog Fence Extension System">Curved Houdini Fence Extensions</th>
<td data-label="50 Foot Kit">6</td>
<td data-label="100 Foot Kit">12</td>
<td data-label="150 Foot Kit">18</td>
<td data-label="200 Foot Kit">24</td>
<td data-label="250 Foot Kit">30</td>
<td data-label="300 Foot Kit">36</td>
<td data-label="350 Foot Kit">42</td>
<td data-label="400 Foot Kit">48</td>
</tr>
<tr>
<th scope="row" data-label="Houdini Dog Fence Extension System">42" Durable Poly Mesh OR Heavy-Duty Welded Wire Mesh</th>
<td data-label="50 Foot Kit">50 Feet</td>
<td data-label="100 Foot Kit">100 Feet</td>
<td data-label="150 Foot Kit">150 Feet</td>
<td data-label="200 Foot Kit">200 Feet</td>
<td data-label="250 Foot Kit">250 Feet</td>
<td data-label="300 Foot Kit">300 Feet</td>
<td data-label="350 Foot Kit">350 Feet</td>
<td data-label="400 Foot Kit">400 Feet</td>
</tr>
<tr>
<th scope="row" data-label="Houdini Dog Fence Extension System">UV Rated Ties (bags of 100)</th>
<td data-label="50 Foot Kit">1</td>
<td data-label="100 Foot Kit">2</td>
<td data-label="150 Foot Kit">3</td>
<td data-label="200 Foot Kit">4</td>
<td data-label="250 Foot Kit">5</td>
<td data-label="300 Foot Kit">6</td>
<td data-label="350 Foot Kit">7</td>
<td data-label="400 Foot Kit">8</td>
</tr>
<tr>
<th scope="row" data-label="Houdini Dog Fence Extension System">Written Installation Instructions</th>
<td data-label="50 Foot Kit">Yes</td>
<td data-label="100 Foot Kit">Yes</td>
<td data-label="150 Foot Kit">Yes</td>
<td data-label="200 Foot Kit">Yes</td>
<td data-label="250 Foot Kit">Yes</td>
<td data-label="300 Foot Kit">Yes</td>
<td data-label="350 Foot Kit">Yes</td>
<td data-label="400 Foot Kit">Yes</td>
</tr>
</tbody>
</table>
<p>*Fasteners are NOT included in our fence extender for dog kits due to the wide variety of fence types. Refer to the Installation Tab for more information on selecting the right fastener.</p>
<p>Note: arms, fences, zip ties, and other accessories are available separately. <strong>Please order according to your needs which may require more or less than the number of components provided in the kits.</strong> <a href="https://www.dogproofer.com/pages/contact-us">Contact us</a> if you would like assistance determining what components you will require for your specific application.</p>
<h5>Installation</h5>
<p>The arms secure to wood posts with screws or lags, round metal posts (like for chain links) with<a href="https://www.dogproofer.com/products/u-bolt-hardware-for-round-posts"> U-Bolts</a><a href="https://www.dogproofer.com/products/u-bolt-hardware-for-2-square-post">,</a> and square metal posts with <a href="https://www.dogproofer.com/products/u-bolt-hardware-for-2-square-post">Square U-Bolts</a>.</p>
<p>Both fence options are secured to the Dog-Proofer arms with our black UV stable 120lb test <a href="https://www.dogproofer.com/products/heavy-duty-zip-ties-bag-of-100">Heavy Duty Zip Ties</a>.</p>
<p><strong><a href="https://cdn.shopify.com/s/files/1/0019/5513/5543/files/INS-DOGCURVED-2PC_-_Curved_Dog_Arm_2-Piece.pdf?v=1672247352">Installation Instructions</a></strong></p>
<h5>Helpful Information</h5>
<h3>Chain Link Fences:</h3>
<ul>
<li>You will need (2) U-Bolts of the appropriate size to secure each Houdini-Proof arm to a <a href="https://www.dogproofer.com/products/u-bolt-hardware-for-round-posts?_pos=4&_sid=ef5cb86fb&_ss=r">round chain link post</a>. We sell U-Bolts in sets of (2), so one set of U-Bolts is what you need to secure one arm when installing your fence extender for dogs. </li>
<li>It is not easy to measure the diameter of round chain link posts due to post caps and top rails blocking access to the top edge of posts. Use a soft tape measure like the measuring tapes used for sewing to measure the circumference of the post. A circumference of about 5 1/4" = 1 5/8" post, a circumference of about 6" = 2" post, and a circumference of about 7 5/16" = 2 1/2" post. Usually, chain link fence toppers for dogs have bigger posts at corners, endpoints, and gates. </li>
<li>The gate tubes are usually a smaller (1 3/8" diameter) tube. Use a 1 5/8" U-Bolt to a gate tube. If you’re installing a fence extension kit to a fence with a single door gate that will open in, you need one arm on both the gate hinge and latch-to posts and an arm on the gate on the latch side. A double door gate opening in would require that both gates have an arm where the gates meet. For outward opening gates, you need one on each gate post and one on each side of the gate. The arms on the gate need to be set higher so that when the gate opens, the arms on the gate can pass over the arms on the posts.</li>
</ul>
<h3>Decorative Aluminum/Steel and Wrought Iron Fences:</h3>
<p>When installing your fence extender for dogs, use <a href="https://www.dogproofer.com/products/u-bolt-hardware-for-2-square-post">square U-Bolts</a> to secure the arms to the posts. We sell the most common size of 2" square U-Bolts. Check your post size. You can also use self-drilling/tapping screws or drill and use bolts. You will likely need to use self-drilling/tapping screws or bolts at gates while installing your fence extension kit.</p>
<h3>Wood Fences:</h3>
<ul>
<li>Where possible, attach the arms of your fence topper for dogs to the posts with outdoor wood screws or lags. At corners, you may need our Corner Adaptor Kit as the corner arm needs to point at a 45-degree angle. </li>
<li>Outward opening gates require an arm on both sides of the gate, and those arms need to be higher than the arms on the gate posts so the arms on the gate can swing over the arms on the posts.</li>
<li>Inward opening gates require an arm on the gate posts and an arm on the gate on the latch side. Use <a href="https://www.dogproofer.com/collections/tools/products/dog-proofer-fence-extension-installation-tool-kit">fence installation tools</a> to cut the fence between the arm on the latch post and the gate’s latch side, and the gate will open.</li>
</ul>
<h3>Masonry Walls: </h3>
<p>Secure the arms to the wall with masonry fasteners. You’ll need four per arm to install your fence extender for dogs. </p>
<p><strong><em>If you have specific questions, call </em><a href="tel:888-211-0617"><em>888-211-0617</em></a><em> Mon-Fri 9AM-5PM ET or </em><a href="mailto:help@dogproofer.com"><em>email</em></a><em>.</em></strong></p>
<h2>Keep Your Pet In With Dog Proofer</h2>
<p>If your dog is climbing or jumping over the fence, look no further than Dog Proofer. When our fence is properly installed, we can help you prevent escapes 99%+ of the time. Our fence extension kits have proprietary designs and come with a three-year warranty. <a href="https://www.dogproofer.com/pages/contact-us">Talk to our experts</a> to get the best fence topper for your dog.</p>
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