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The 7 Best Dog Fence Wires

Wire fencing is a cost-effective solution for pet owners looking to fence a large area such as a backyard or acreage.

Depending on the type of wire used, it can be buried to make it invisible to dogs or hung a few feet above the ground.

However, with so many options available, choosing the right dog fence wire can be overwhelming.

That's why BestForPets (bestforpets.org) has compiled reviews of the best dog fence wires on the market, along with a buyer's guide to help you choose the right features for your needs.

Read on for our suggestions.

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icon Reviewed & Fact - Checked by

Deborah R. Fletcher (DVM)


The information provided is current and up-to-date, in line with the latest research conducted in the field of veterinary medicine.

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1. PetSafe RFA-1 Boundary Wire

PetSafe Boundary Wire

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The PetSafe Boundary Wire is an excellent option for pet owners seeking a versatile dog fence wire that offers multiple fence configurations.

With the ability to extend an existing fence up to 500 feet or be buried to create an invisible fence, this wire provides plenty of options for pet containment.

Constructed of 20-gauge solid copper wire, this product is suitable for direct burial and can be linked to an existing physical fence for enhanced pet containment.

The wire works seamlessly with in-ground fence kits from PetSafe, Guardian, and Innotek and is also available in 16-gauge and 18-gauge gauges.

One drawback is that the spool is made of cardboard, which may be damaged when unspooling the wire. However, we believe that this is one of the best dog fence wires on the market this year.

When using this product, it is recommended to use gel-filled splice capsules and wire connectors (RFA-366) for optimal performance.

PetSafe has been a trusted global leader in pet behavior, containment, and lifestyle innovations since 1991, providing pet owners with quality products to keep their pets healthy, safe, and happy.

With coverage of approximately 1/3 of an acre, this dog fence wire is an excellent choice for pet owners looking for a reliable and effective way to contain their furry friends.


Increases the length of the existing containment system by 500 feet

20-gauge solid copper wire is rated for direct burial.

A physical fence can have a wire connected to it.

Compatible with in-ground fence kits from PetSafe, Guardian, or Innotek

Available in 16- and 20-gauge sizes


The spool is composed of destructible cardboard.

2. Extreme UV Resistant Dog Fence Wire

Extreme Professional Series High Grade Electric Dog Fence Wire 14 Gauge UV Resistant

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The eXtreme Dog Fence 14-gauge dog fence wire is an excellent choice for pet owners seeking reliable and long-lasting dog fence wire.

The wire features a polyethylene jacket that protects it from UV radiation, extreme temperatures, and water, making it ideal for burial.

Additionally, it boasts a solid copper core that efficiently carries power to ensure effective pet containment.

This dog fence wire is compatible with all brands and systems of dog fencing, providing pet owners with flexibility and convenience.

One downside of this product is its higher cost compared to other dog fence wires on the market.

The wire comes on a spool that cannot be unspooled, so it must be manually unwound, which may be inconvenient for some users.

This dog fence wire has a heavy-duty core with a single conductor of 14-gauge wire and a thick polyethylene jacket that is both UV-resistant and direct ground burial-rated.

It can be buried as deep as 18 inches, run above ground, and secured with yard staples to ensure safety.

The wire comes in 500-foot increments, up to 5000 feet, and will be delivered on a continuous spool, making installation easy and hassle-free.

With the eXtreme Dog Fence brand underground dog fence wire, you can expect at least 20 years of solid performance, whether the wire is buried or above ground.

The wire is manufactured in the United States using imported parts, and the manufacturer stands behind their product 100%.

In summary, the eXtreme Dog Fence 14-gauge dog fence wire is an excellent investment for pet owners seeking reliable dog fence wire that can withstand harsh weather conditions and offer long-lasting performance.


Solid copper core

Compatible with all dog fence manufacturers and systems

UV radiation, severe temperatures, and water are defended by a polyethylene shell.



The spool must be manually unwound.

3. SportDOG SDF-WF Wire Brand

SportDOG Brand Wire & Flag Kit for In-Ground Fence Systems

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SportDOG Wire is a compatible and reliable dog fence wire designed specifically for SportDOG in-ground fencing systems.

It is an ideal option for pet owners who want to add an extra third of an acre to their existing in-ground fence system, providing their dogs with ample space to run and play.

This product includes 500 feet of 20-gauge wire, 50 boundary flags, two wire nuts, and two waterproof, gel-filled wire-splice capsules, providing you with everything you need to install the fence.

The wire is suitable for expanding your fencing, and its compatibility with the SportDOG Brand In-Ground Fence System (SDF-100A) ensures that it works seamlessly with the existing system.

One downside of this product is that it comes packaged on a cardboard spool that may fall apart when you attempt to unwind it. Furthermore, the system-required dog collar is not included in the package and must be purchased separately at an additional cost.

In summary, the SportDOG Wire is an excellent investment for pet owners seeking to expand their existing in-ground fence system and provide their dogs with more space to roam.

It is a reliable and compatible option that includes all the necessary accessories for installation. However, the cardboard spool packaging and the need to purchase the dog collar separately may be drawbacks for some users.


Compatible with the SportDog brand of in-ground fencing

Adds 0.3 acres to the current ground-based fence system

Includes 500 feet of 20-gauge wire, 50 boundary markers, two wire nuts, and two gel-filled, waterproof wire-splicing capsules.


A cardboard spool that readily disassembles

Collars are offered separately.

4. Extreme Electric Dog Fence Wire

Electric Dog Fence™ Universal Wire

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The Extreme Electric Dog Fence Wire comes on a 500-foot spool that eliminates the need for splicing and ensures easy installation.

Its rugged polyethylene covering protects the wire from UV radiation, extreme temperatures, and water exposure, making it ideal for outdoor use.

Additionally, it is compatible with all reputable brand electric dog fence systems, including Perimeter Technologies, Dogtra, Pet Stop, High Tech Pet, DogWatch, Innotek, and many others.

One downside of this product is its higher cost compared to other options on the market. Additionally, the wire may be prone to tangling, making it challenging to unwind 500 feet of it.

It is important to note that this is copper-coated wire, which conducts electricity less efficiently underground than solid copper wire.

The wire can be buried 1-3 inches deep using a lawn edger, trencher, or garden hoe, making it an easy and convenient option for pet owners.

The Extreme Dog Fence brand also offers a variety of additional fence parts and pet-related products, including spools of twisted wire, replacement collars, batteries, and transmitters, which can be found in their Amazon store.

In summary, while it may be more expensive and prone to tangling, the rugged polyethylene jacket of the Extreme Electric Dog Fence Wire provides excellent protection against UV radiation and water exposure.

Its compatibility with all reputable electric dog fence systems and easy installation make it a convenient and excellent choice for pet owners.


The 500-foot continuous spool removes the need for splicing.

UV radiation and water exposure are defended by the polyethylene layer.

Compatible with all wired electric dog fence manufacturers



Tangles readily

Copper-clad wire rather than solid copper wire

5. Distribution Boundary Wire for AGM

BOTARO 1000 Foot Spool 18 Gauge Boundary Wire

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If you’re looking for a more durable and efficient wire for your electric dog fence, the AGM Distribution Boundary Wire is an excellent option.

The wire is made of 18-gauge solid copper, making it a better conductor of electricity and more durable than other alternatives.

Compatible with popular brands like Invisible Fence, PetSafe, and SportDog, the wire’s plastic coating and resistance to ultraviolet light make it durable and reliable.

Due to its thicker wire gauge (18) and longer length (1,000 feet), this product is more expensive.

However, if you don’t need to enclose as much of your yard, there are less expensive options available. The wire’s lack of flexibility and the narrow spool may also make unwinding it a challenge.

The AGM Distribution Boundary Wire is constructed with a 30-mil polyethylene (plastic-coated) solid core wire and has a direct ground burial rating, making it ideal for underground installation.

Made in the USA, it provides excellent protection against sunlight, ensuring its longevity. Overall, the AGM Distribution Boundary Wire is a smart investment.

Its sturdy copper construction and compatibility with all leading electric dog fence brands may increase the price, but they also guarantee the product’s effectiveness.

Its plastic coating and resistance to ultraviolet light make it a durable and reliable choice for pet owners.


Solid 18-gauge copper wire on a 1,000-foot spool.

Compatible with all manufacturers, including SportDog, PetSafe, and Invisible Fence.

Plastic-coated and resistant to sunlight



Limited availability

Not very elastic

Unwinding is challenging

Narrow reel

6. DOGTEK Boundary Wire

DOGTEK 500ft Boundary Wire For Electronic Dog Fence System

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The DOGTEK Boundary Wire is a cost-effective option for pet owners who want a reliable and durable electric dog fence wire. The wire spool contains 500 feet of burial-grade wire, which is perfect for electronic dog fencing.

The yellow polyethylene jacket provides excellent physical protection against the elements, making it a long-lasting option for outdoor use. Additionally, it is static and oxidation-resistant, ensuring its effectiveness and longevity.

While this wire is specifically designed for DOGTEK EF-4000 and EF-6000 dog fences, it is compatible with most reputable electronic dog fencing systems.

One potential downside of this product is that the wire only comes in 20-gauge, which is thin and not as durable as thicker wires. However, it still provides great value for the price.

500 feet of wire can cover an area of approximately 1/4 acre, making it an ideal option for pet owners with smaller yards.

In summary, while the DOGTEK Boundary Wire may not be as durable as thicker wires, its polyethylene jacket and resistance to static and oxidation make it a long-lasting option for outdoor use.

Its compatibility with most reputable electronic dog fencing systems and burial-grade wire make it an ideal choice for pet owners with smaller yards.


500 feet of burial-grade cable

Designed specifically for the DogTek EF-4000 and EF-6000 electronic dog fencing

The polyethylene vest offers physical security

Static-resistant and oxidation-proof


The wire is inadequately thin.

7. Windogz Boundary Wire for Electric Fence System

Dog fence wire for electric Dog fence system, 500 ft, covers ¼ acre area, easy to Install

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Windogz Boundary Wire is an affordable and reliable option for electric fence systems.

Made of durable copper material, this burial-grade wire features a polyethylene coating that provides static resistance and prevents oxidation.

It is available in 20-gauge thickness and comes in sizes of 500 and 1,000 feet.

Compatible with various reputable fence brands, including High Tech Pet, Innotek, Dogtra, Perimeter Technologies, Pet Stop, and DogWatch, Windogz Boundary Wire is easy to install using a garden hoe or trencher and can be buried up to three inches deep.

The wire is also easy to splice, and for optimal performance, Windogz recommends using waterproof wire nuts, wire strippers, and gel-filled splice capsules.

This wire can cover approximately 14 acres and is ideal for creating an invisible fence to contain pets. It is oxidation-resistant and waterproof, ensuring long-lasting and reliable performance.

At Windogz, the company is committed to providing excellent service and helping pet owners keep their pets safe and happy.

Their boundary wire is of excellent quality and offers exceptional waterproof protection and oxidation resistance, making it a smart and affordable choice for those looking for a high-quality electric fence wire for pets.


Compatible with leading wired dog fence manufacturers

Simple to implement

Reputable brand of subterranean fence wire

Durable and long-lasting

20-gauge polyethylene-coated wire

Available in two lengths of 500 and 1000 feet

Provide strong resistance

Economical product

Increases the mobility of your companion


Exclusive to the 20 gauge measurement

Packaging is not excellent

Buyer's Guide

There are numerous factors to consider while deciding between various types of dog fence wire

1. Wire Gauge

Electric dog fence wires come in standard sizes of 20 gauge, 18 gauge, 16 gauge, and 14 gauge. Thinner wires, such as 20-gauge, are often cheaper and commonly used in do-it-yourself fence kits.

However, professionally installed systems use thicker wires, such as 16 gauge or 14 gauge, which may be more expensive but offer better durability and signal transmission.

2. Durability

Because dog fence wires are exposed to the elements, it is important to choose a wire with high endurance. Thinner gauges may offer better durability, and a plastic or vinyl coating can provide additional protection.

For example, a polyethylene coating can offer a watertight layer of protection for wires buried underground.

3. Superior Quality

The quality of the spool is also important, as a low-quality spool can disintegrate during the unwinding process. High-quality plastic or metal spools can make the unwinding process easier and prevent wire damage.

4. Signal Transmission

To ensure consistent signals and proper electrical transmission, it is important to use the same gauge of wire when adding to an existing dog fence system.

In larger properties, thicker gauge wire may be beneficial in extending the signal’s range.

5. Stranded vs. Solid Core Wire

Copper wire for dog fences is available as stranded or solid-core wire. Stranded wire is more flexible and easier to unwind, but it may deteriorate more quickly due to rust.

Solid-core wire is less flexible but more corrosion-resistant and suitable for above-ground fences. While solid-core wire may be more expensive initially, it offers better longevity and durability.

In summary, choosing the right dog fence wire involves considering factors such as wire gauge, signal transmission, durability, spool quality, and stranded vs. solid-core wire.

These factors can help ensure the optimal performance and longevity of your dog fence system.

What is a dog's Underground Fence Wire?

Underground dog fence wire is a crucial component of an invisible fence system that keeps your pet safe and contained within predetermined boundaries.

These wires are designed to be submerged underground and feature a professional-quality polyethylene coating that protects against water exposure and ultraviolet radiation.

It is essential to choose burial-grade wire when purchasing fence wire to ensure its durability and dependability. This wire is included in a setup for an invisible fence that also includes transmitters and a dog harness.

When your pet approaches a boundary wire, the wire transmits a signal to the transmitter, which then sends a radio signal to the dog’s collar.

For efficient dog training, flagged fence wires are highly recommended. During training, it is not necessary to position the flags precisely above the exact electrical location.

Instead, scattering them along the fence’s perimeter or in locations such as the pool for two weeks is sufficient for your pet to comprehend the boundaries.

There are numerous ways to install an underground wire fence. A common technique is to conceal the wire along the yard’s perimeter. However, to enhance signal strength, it is essential to bury the wire at the prescribed depth, which is typically at least 3 inches.

Depending on your requirements and the extent of your yard, you can bury the wire in various ways. For instance, if you primarily keep your pet in the backyard, wiring the backyard alone may suffice.

Another option is to separate the front and back barriers with wire, leaving space along the boundary between the front and backyard.

Choosing the appropriate burial-grade wire for your underground dog fence system is crucial for ensuring its durability and dependability.

With proper installation and training, an in-ground wire fence can provide a secure and effective method for containing your pet within predetermined boundaries.


1. Is there anything special about dog fence wire?

Yes, professional-grade dog fence wire offers long-term reliability, making it a worthwhile investment for pet owners.

Upgraded wire is designed to withstand freezing and thawing conditions, ground expansion, exposure to water and chemicals, and general wear and tear.

This means it can provide better performance and durability than standard kit wire, making it a smart choice for those looking for a reliable and long-lasting dog fence solution.

2. What is the strongest fencing for dogs?

Metal fencing is the strongest option for dogs, as it can withstand extreme weather conditions and is difficult for dogs to chew through or jump over. Vinyl and wood fencing are also durable choices for dog fences.

3. Is solid or stranded wire better for dog fence?

Solid-core wire is the better choice for dog fences, as it is easier to work with and more durable than stranded wire. However, stranded wire can still be used if solid-core wire is not available.

4. How deep should wire be for extreme dog fence?

It is recommended to bury the dog fence wire no deeper than 2 feet. If you need to bury the wire deeper, make sure the dog fence transmitter can be adjusted to compensate for the depth.

5. How long does dog fence wire last?

The life expectancy of dog fence wire depends on the type of wire used. Direct burial grade wire, such as the Invisible Fence® Brand boundary wire, can last up to 27 years if left undisturbed in the ground.

6. Is 20 gauge wire good enough for dog fence?

While 20-gauge wire is cheaper and lighter, it is not as durable as thicker wire. For most dog fence installations, it is recommended to upgrade to heavy-duty wire for better resilience and longevity.

7. What fence can dogs not climb?

For dogs that cannot clear a 6-foot jump, estate fences, block wall fences, wood privacy fences with the “good side” facing in, and vinyl fences are all options for dog containment.

These fences do not provide horizontal supports for dogs to climb on, making it difficult for them to escape.


Our top pick for the best dog fence wire is the PetSafe RFA-1 Boundary Wire .

It offers numerous fencing options, including expanding existing fencing, burying the wire for invisible fencing, or attaching it to a physical fence.

This wire is compatible with a variety of in-ground fence kits, making it a versatile choice for pet owners.

At BestForPets, we are committed to providing reviews and buyer’s guides that help pet owners find the best products for their needs.

We understand the importance of ensuring the safety and well-being of pets, and our team has extensive experience in the pet industry.

Whether you’re searching for the best dog fence wire or any other pet-related product, we are here to assist you in making an informed decision.

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Dr. Kathleen Champ

Dr. Kathleen W. Champ is a veterinarian and medical writer with more than 15 years of expertise in small animal, general care, surgery, and emergency medicine. As a lifetime animal advocate, Dr. Kathleen W. Champ has devoted her professional life to delivering great care for animals.

Veterinarian (DVM) Dr. Kathleen Champ


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