Best Height Extension For Chain Link Fence: 10 Kits Compared

Best Height Extension For Chain Link Fence

A strong chain link fence extension adds useful height while matching your existing top-rail diameter and the coverage you need. For many standard 1-3/8-inch rails, GRELWT offers a 25.2-inch extension, nine posts, and included bolts and nuts; buyers with 1-5/8-inch rails should instead focus on products that specify that fit. This roundup compares ten options ranging from 17 to 27.4 inches, with different pack sizes, materials, and attachment designs.

Check your rail’s outside diameter before choosing: a height match cannot compensate for an incompatible bracket. Also consider how many posts your fence needs, whether the kit includes fastening hardware, and whether a shorter or taller extension better suits your containment goal.

GRELWT 1-3/8-Inch Extender is the best overall choice for buyers whose chain link fence has a 1-3/8-inch top rail. It provides a listed 25.2-inch extension, uses an adjustable U-bracket design, and includes bolts and nuts for its nine-post kit. Those details make its fit and installation setup clearer than options that do not specify a rail diameter or included hardware.

If your rail measures 1-5/8 inches, choose a product explicitly made for that size instead.

Our Top Picks

GRELWT 1-3/8-Inch ExtenderBest Overall

GRELWT 1-3/8-Inch Extender

Specifies a 1-3/8-inch top rail fit, 25.2-inch extension height, adjustable U-bracket, and included bolts and nuts for its nine-post kit.

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ICITYWALL 1-3/8-Inch ExtenderThick Bracket

ICITYWALL 1-3/8-Inch Extender

Fits a 1-3/8-inch rail and adds 25 inches; its listed 3 mm bracket and galvanized steel suit buyers prioritizing a substantial bracket.

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Wenses 1-3/8-Inch KitHardware Included

Wenses 1-3/8-Inch Kit

Offers a 25-inch extension for 1-3/8-inch top rails, plus bolts, nuts, and 30 steel ties in the listed package.

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#ProductDimensionsDimensions L x WMaterialBuy
127.4"L x 1.4"W27.4"L x 1.4"WAlloy SteelView on Amazon
227"L x 2.2"W27"L x 2.2"WAlloy SteelView on Amazon
3
Wenses 1-3/8-Inch Kit3. Wenses 1-3/8-Inch KitHardware Included
27"L x 1.4"W27"L x 1.4"WAlloy SteelView on Amazon
427"L x 2"W27"L x 2"WAlloy SteelView on Amazon
5———View on Amazon
6
Leriton 1-5/8-Inch Extender6. Leriton 1-5/8-Inch ExtenderFor 1-5/8-inch fence posts
26.38 x 6.1 x 4.33 in——View on Amazon
7
VEVOR 27.4-Inch Extender7. VEVOR 27.4-Inch ExtenderFor broad yard coverage
1.3"L x 1.8"W1.3"L x 1.8"WAlloy SteelView on Amazon
8
BTRAM 19.5-Inch Extender8. BTRAM 19.5-Inch ExtenderFor compact pet-fence upgrades
19.5"L x 2.2"W19.5"L x 2.2"WAlloy SteelView on Amazon
9
Hicarer 20-Inch Extender9. Hicarer 20-Inch ExtenderFor angled 1-3/8-inch rails
——Alloy SteelView on Amazon
10
TPHUC 17-Inch Extender10. TPHUC 17-Inch ExtenderFor many fence sections
———View on Amazon
GRELWT 1-3/8-Inch Extender

#1 · Best Overall

1. GRELWT 1-3/8-Inch Extender

  • Dimensions: 27.4"L x 1.4"W
  • Dimensions L x W: 27.4"L x 1.4"W
  • Material: Alloy Steel

Best for: For angled 1-3/8-inch rails.

Why it ranks #1: Specifies a 1-3/8-inch top rail fit, 25.2-inch extension height, adjustable U-bracket, and included bolts and nuts for its nine-post kit.

A U-joint bracket lets these GRELWT extenders adjust to different fence angles while adding 25.2 inches above a 1-3/8-inch top rail. The nine galvanized-steel posts come with bolts and nuts, making this a specifically sized option for dog containment or added yard privacy.

The stated 1-3/8-inch outer-diameter fit gives buyers a clear rail-size target, while the U-bracket is described as easy to push onto the top rail and adjustable for different angles. That combination can help when a fence line is not level or extensions need to follow varied sections. Each of the nine kits includes a bolt and nut, and the 25.2-inch extension supplies a substantial vertical increase for privacy or pet containment.

Pros
  • Adds 25.2 inches of height
  • Fits 1-3/8-inch outer-diameter top rails
  • Adjustable U-bracket accommodates different angles
  • Nine galvanized-steel posts with bolts and nuts included
Cons
  • Compatibility is limited to a 1-3/8-inch outer-diameter top rail.

Skip it if you have a 1-5/8-inch rail; TPHUC TP002 specifies that larger diameter.

This GRELWT set suits owners of 1-3/8-inch chain-link rails who want angled adjustment and a 25.2-inch rise. Its stated rail fit is specific, so it is not the choice for a 1-5/8-inch top rail.

Full product details
BrandGRELWT
ColorSilver
Included Components9 Bolt and 9nuts, 9 pack 1 3/8" post
Item Dimensions L x W27.4"L x 1.4"W
ManufacturerGRELWT
Part NumberGRE-Post-35mm-9
MaterialAlloy Steel
Model NumberGRE-Post-35mm-9
Dimensions27.4"L x 1.4"W
Style1-3/8" 9 kits
Style Name1-3/8" 9 kits

Listed on Amazon as: 9 Pack 1-3/8" Chain Link Fence Extender, 25.2" Extension Height, U Bracket Design Patented Product, Galvanized Steel for top of Fence for Dogs and Privacy

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ICITYWALL 1-3/8-Inch Extender

#2 · Thick Bracket

2. ICITYWALL 1-3/8-Inch Extender

  • Dimensions: 27"L x 2.2"W
  • Dimensions L x W: 27"L x 2.2"W
  • Material: Alloy Steel

Best for: For wind-exposed 1-3/8-inch rails.

Why it ranks #2: Fits a 1-3/8-inch rail and adds 25 inches; its listed 3 mm bracket and galvanized steel suit buyers prioritizing a substantial bracket.

A 3mm-thick large-opening tube bracket is the defining feature of this ICITYWALL set, with an adjustable fit for 1-3/8-inch top rails. Nine galvanized extenders add 25 inches of height, while the bracket is described as helping the posts stand in windy weather.

The 3mm bracket thickness and large-opening tube shape support a push-on installation, and the adjustable bracket can follow different fence angles. ICITYWALL specifies fit for a 1-3/8-inch outer-diameter top rail, giving buyers a direct sizing reference before installation. Each extender adds 25 inches, and the galvanized steel has a rust-resistant coating, a useful combination for outdoor fence upgrades. Bolts and nuts are included for the nine-post set.

Pros
  • Adds 25 inches of fence height
  • Fits 1-3/8-inch outer-diameter top rails
  • 3mm large-opening bracket adjusts to different angles
  • Galvanized steel has a rust-resistant coating
Cons
  • The listed rail fit is limited to 1-3/8-inch outer diameter.

Skip it if you have a 1-5/8-inch rail; TPHUC TP002 lists compatibility with that diameter.

Pick ICITYWALL for a nine-post, 25-inch increase on a 1-3/8-inch chain-link rail, particularly where angled adjustment matters. Its specified rail diameter is the key fit boundary before starting installation.

Full product details
BrandICITYWALL
ColorSilver
Included Components9 pack silver fence extension post
Item Dimensions L x W27"L x 2.2"W
ManufacturerICITYWALL
Part NumberICW-Post-35mm-9
MaterialAlloy Steel
Model NumberICW-Post-35mm-9
Dimensions27"L x 2.2"W
Style1-3/8" 9 count
Style Name1-3/8" 9 count

Listed on Amazon as: 9 Pack Chain Link Fence Extension, 25" Fence Extension Height, Galvanized Post Extender for Dogs (1-3/8",Silver)

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Wenses 1-3/8-Inch Kit

#3 · Hardware Included

3. Wenses 1-3/8-Inch Kit

  • Dimensions: 27"L x 1.4"W
  • Dimensions L x W: 27"L x 1.4"W
  • Material: Alloy Steel

Best for: For secure animal containment.

Why it ranks #3: Offers a 25-inch extension for 1-3/8-inch top rails, plus bolts, nuts, and 30 steel ties in the listed package.

A knurled clamp surface is the key feature of this Wenses kit, gripping the top rail to help keep extensions from slipping or shifting. Nine 25-inch extenders fit 1-3/8-inch rails, while the galvanized carbon-steel construction targets outdoor use and animal containment.

The knurled clamp surface is intended to grip the rail securely, which supports a stable extension for keeping dogs in or critters out. Its 25-inch height addition and stated 1-3/8-inch top-rail fit make the application and sizing clear. Thick carbon steel with a galvanized finish is specified for exposure to heat and rain. The package lists nine extenders, ten bolts, ten nuts, and 30 steel ties, giving buyers hardware and ties for installation.

Pros
  • Adds 25 inches of fence height
  • Fits 1-3/8-inch top rails
  • Knurled clamp surface grips the rail
  • Includes nine extenders, hardware, and 30 steel ties
Cons
  • The stated top-rail fit is limited to 1-3/8-inch diameter.

Skip it if you need a 1-5/8-inch rail fit; TPHUC TP002 lists compatibility with that diameter.

Wenses suits owners seeking a 25-inch increase for animal containment on a 1-3/8-inch rail, with ties and fasteners included. The stated diameter is the important compatibility limit for this kit.

Full product details
BrandWenses
ColorSilver
Included Components10 Bolts, 10 Nuts, 30 Steel Ties, 9 Extenders
Item Dimensions L x W27"L x 1.4"W
ManufacturerBullock Global LLC
Part NumberPEXT-138-9PK
MaterialAlloy Steel
Model NumberPEXT-138-9PK
Dimensions27"L x 1.4"W
StyleOutdoor
Style NameOutdoor

Listed on Amazon as: 9-Pack 1-3/8" Chain Link Fence Height Extension Kit, 25" Tall

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TPHUC 1-5/8-Inch Extender

#4 · Larger Rail Fit

4. TPHUC 1-5/8-Inch Extender

  • Dimensions: 27"L x 2"W
  • Dimensions L x W: 27"L x 2"W
  • Material: Alloy Steel

Best for: For 1-5/8-inch top rails.

Why it ranks #4: Specifically fits 1-5/8-inch top rails and provides a 25.2-inch extension with a 3 mm frame and included bolts and nuts.

A 1-5/8-inch top-rail fit distinguishes this TPHUC set from the many 1-3/8-inch options, and its nine extenders add 25.2 inches. The adjustable U-joint follows different fence angles, while rust-resistant steel suits outdoor use for pet or privacy upgrades.

The specified 1-5/8-inch outer-diameter fit helps owners of larger top rails identify a compatible option, and the 25.2-inch extension adds substantial height. Its U-joint bracket pushes onto the rail and adjusts to different angles, which can help extensions follow a nonstraight fence line. The 3mm frame and rust-resistant steel finish provide construction details relevant to outdoor use. Bolts and nuts are included with the nine-post set.

Pros
  • Fits 1-5/8-inch outer-diameter top rails
  • Adds 25.2 inches of height
  • U-joint adjusts for different angles
  • 3mm frame with rust-resistant finish; bolts and nuts included
Cons
  • The listed rail fit is specific to 1-5/8-inch outer diameter.

Skip it if you have a 1-3/8-inch rail; Wenses PEXT-138-9PK specifies that smaller top-rail size.

This TPHUC kit suits owners of 1-5/8-inch chain-link rails seeking a 25.2-inch increase with angle adjustment. Its stated rail diameter is the critical boundary; it is not listed for 1-3/8-inch rails.

Full product details
BrandTPHUC
ColorBlack – 9 kits
Included ComponentsAccessories, Hardware
Item Dimensions L x W27"L x 2"W
ManufacturerTPHUC
Part NumberTP002
MaterialAlloy Steel
Model NumberTP002
Dimensions27"L x 2"W
StyleGarden
Style NameGarden

Listed on Amazon as: 9 Pack 25.2" Chain Link Fence Extension for Dogs (1-5/8", Black)

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Plum Fittings 1-5/8-Inch Extender

#5 · Two-Foot Extension

5. Plum Fittings 1-5/8-Inch Extender

Best for: For five 1-5/8-inch posts.

Why it ranks #5: Adds a full two feet and is designed for 1-5/8-inch line or end posts, making its stated post fit useful for larger fence posts.

These Plum Fittings extenders add two feet to existing chain-link fences and fit 1-5/8-inch line or end posts. The five-piece galvanized-steel pack offers a straightforward option for owners seeking to discourage pets from jumping or climbing without changing the whole fence.

The stated two-foot extension gives a clear height increase, while compatibility with 1-5/8-inch line or end posts identifies the intended attachment points. Galvanized steel is specified for the five extenders, making the material relevant to an outdoor fence installation. The product is aimed at discouraging pets from jumping or climbing. Its supplied facts do not describe bracket geometry, adjustment, or included fasteners, so those workflow details are not established by the listing.

Pros
  • Adds two feet of fence height
  • Fits 1-5/8-inch line or end posts
  • Five extenders included
  • Made from galvanized steel
Cons
  • The five-piece pack provides only five extenders.

Skip it if you need nine extension positions; TPHUC TP002 provides nine kits for 1-5/8-inch top rails.

Choose Plum Fittings when five 1-5/8-inch line or end posts need a two-foot extension to help deter climbing pets. The five-piece quantity defines the project scale this pack can cover.

Full product details
BrandPlum Fittings
Item Weight‎16 pounds
Manufacturer‎Plum Fittings

Listed on Amazon as: 2 ft Long Chain Link Fence Post Extenders for 1 5/8" Fence Posts (Pack of 5)

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Leriton 1-5/8-Inch Extender

#6

6. Leriton 1-5/8-Inch Extender

  • Dimensions: 26.38 x 6.1 x 4.33 in

Best for: For 1-5/8-inch fence posts.

Why it ranks #6: Its description lists a 2-foot extension, 1-5/8-inch outside-diameter fit, galvanized steel, and a five-piece pack for matching larger posts.

A three-inch-deep sleeve is the defining feature of these Leriton extenders, creating a close structural connection as five posts add two feet of fence height. The supplied description also identifies 2mm-thick galvanized steel, pairing the sleeve approach with a material specification for buyers focused on a taller, steadier extension.

The 3-inch sleeve is described as creating a tight structural bond, which addresses wobble concerns when adding height to an existing fence. Its 2mm-thick galvanized-steel construction adds a specified material and thickness detail for buyers comparing post rigidity and weather exposure. The title identifies a 1-5/8-inch outside-diameter application, and the five-post pack is suited to a smaller extension project; the supplied facts do not state included fasteners or a bracket design.

Pros
  • Adds two feet of fence height
  • Five extenders in the pack
  • Three-inch-deep sleeve is described as creating a tight structural bond
  • 2mm-thick galvanized steel
Cons
  • The five-post pack covers fewer positions than the nine- and 18-piece sets.

Skip it if you need nine positions covered; TPHUC TP002 includes nine extenders for 1-5/8-inch rails.

Consider Leriton if your project calls for five 1-5/8-inch post extensions and values the stated three-inch sleeve and galvanized steel. The smaller pack is a boundary for work requiring more than five extension points.

Full product details
BrandLeriton
Item Weight8.03 pounds
Item model numberXEI-Leriton-1431
ManufacturerLeriton
Dimensions26.38 x 6.1 x 4.33 inches

Listed on Amazon as: 5 Pack 1-5/8" Od Chain Link Fence Post Extenders, 2 ft Fence Post Extension

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VEVOR 27.4-Inch Extender

#7

7. VEVOR 27.4-Inch Extender

  • Dimensions: 1.3"L x 1.8"W
  • Dimensions L x W: 1.3"L x 1.8"W
  • Material: Alloy Steel

Best for: For broad yard coverage.

Why it ranks #7: The listed 27.4-inch height is the greatest among these products, and its 18 extenders can cover more posts than several nine-piece kits.

Eighteen extenders raise a chain-link fence by 27.4 inches, giving yards, farms, and gardens a substantial height increase for added privacy or to help keep pets from jumping out. VEVOR pairs that tall extension with an Ω-shaped bracket and adhesive backing to improve grip and stability.

The 27.4-inch extension offers more added height than the shorter options in this roundup, which can suit buyers prioritizing a taller perimeter. Its 18-piece pack provides more extenders for distributing around a fence, while the Ω-shaped bracket with adhesive backing is intended to hold with better grip and stability. The supplied facts identify alloy steel construction, but do not specify a top-rail diameter, so the product information does not establish compatibility with a particular rail size.

Pros
  • Adds 27.4 inches of fence height
  • Includes 18 extenders
  • Ω-shaped bracket has adhesive backing for grip and stability
  • Alloy steel construction
Cons
  • The listed information does not specify a compatible top-rail diameter.

Skip it if you need a stated rail-size match; GRELWT GRE-Post-35mm-9 specifies a 1-3/8-inch top rail.

Choose this VEVOR set when a 27.4-inch increase and 18 extenders suit your yard, farm, or garden project. Its stated information leaves top-rail diameter unspecified, so that compatibility detail is a meaningful boundary.

Full product details
BrandVEVOR
ColorGray
Included ComponentsChain Link Fence Extensions
Item Dimensions L x W1.3"L x 1.8"W
Item Weight22.3 pounds
ManufacturerVEVOR
Part NumberYX25-013
MaterialAlloy Steel
Model NumberYX25-013
Dimensions1.3"L x 1.8"W
StyleCylindrical
Style NameCylindrical

Listed on Amazon as: VEVOR Chain Link Fence Extensions 27.4 inch Height 18 Packs Post Extender

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BTRAM 19.5-Inch Extender

#8

8. BTRAM 19.5-Inch Extender

  • Dimensions: 19.5"L x 2.2"W
  • Dimensions L x W: 19.5"L x 2.2"W
  • Material: Alloy Steel

Best for: For compact pet-fence upgrades.

Why it ranks #8: Lists a 1-3/8-inch rail fit, adjustable U-joint, and 19.5-inch extension; its stated height is shorter than the leading options.

At 19.5 inches tall, these BTRAM extenders offer a more compact height increase than the 25-inch-plus options, while their U-joint bracket adjusts to different fence angles. The nine-piece steel set fits 1-3/8-inch outer-diameter top rails and has a rust-resistant finish.

The 19.5-inch extension provides a moderate rise for owners who do not need the taller 25-inch-plus options. Its U-joint design pushes into the top rail and adjusts to different angles, helping the extension follow the fence line. BTRAM specifies a 1-3/8-inch outer-diameter fit and 3mm frame thickness, while the rust-resistant steel finish supports outdoor use. The extenders are also described as lightweight and portable for easier carrying and installation.

Pros
  • Adds 19.5 inches of fence height
  • Fits 1-3/8-inch outer-diameter top rails
  • U-joint adjusts for different angles
  • 3mm frame with rust-resistant steel finish
Cons
  • The 19.5-inch rise is shorter than the 25-inch-plus extensions.

Skip it if you want a 25-inch rise; ICITYWALL ICW-Post-35mm-9 adds 25 inches and fits 1-3/8-inch rails.

Choose BTRAM for a nine-piece, 19.5-inch increase when adjustable angles and portability matter on a 1-3/8-inch rail. Its shorter rise is the main boundary for buyers seeking a taller extension.

Full product details
BrandBTRAM
ColorSet 9
Included ComponentsNo
Item Dimensions L x W19.5"L x 2.2"W
ManufacturerBTRAM
Part NumberBT001
MaterialAlloy Steel
Model NumberBT001
Dimensions19.5"L x 2.2"W
StyleGarden
Style NameGarden

Listed on Amazon as: 9 Pack 1-3/8" Chain Link Fence Extension 19.5" for Dogs (Black)

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Hicarer 20-Inch Extender

#9

9. Hicarer 20-Inch Extender

  • Material: Alloy Steel

Best for: For angled 1-3/8-inch rails.

Why it ranks #9: Provides nine galvanized extenders about 20 inches long and specifies a maximum 1-3/8-inch rail outside diameter, but gives fewer construction details.

Adjustable positioning lets these Hicarer extenders follow different fence angles, while the nine galvanized posts add about 20 inches of height. They fit a 1-3/8-inch outer-diameter top rail, giving buyers a clear sizing limit for a privacy or dog-containment upgrade.

Hicarer lists a total extender length of approximately 20 inches and a bracket length of about 2.3 inches, helping buyers understand the product’s dimensions. The adjustable angle can accommodate a fence line that changes direction, while the stated 1-3/8-inch outer-diameter rail fit narrows compatibility to a specific size. Nine galvanized alloy-steel extenders are included. The listing cautions that a top pipe larger than 1-3/8 inches will be too large for installation.

Pros
  • Nine extenders included
  • Approximately 20 inches total length
  • Adjustable for different fence angles
  • Galvanized alloy steel construction
Cons
  • The rail must be no larger than 1-3/8 inches in outer diameter.

Skip it if you have a 1-5/8-inch rail; Leriton XEI-Leriton-1431 is titled for 1-5/8-inch posts.

Hicarer fits buyers adding about 20 inches across nine positions on a 1-3/8-inch rail, with angle adjustment for varied fence lines. Its strict stated diameter limit makes rail sizing essential.

Full product details
BrandHicarer
ColorSliver
ManufacturerHicarer
MaterialAlloy Steel

Listed on Amazon as: Hicarer 9 Pcs 1-3/8" Chain Link Fence Post Extender 20 Inch Extension Height Galvanized Chain Link Fence Extension for Privacy and Dogs (Sliver)

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TPHUC 17-Inch Extender

#10

10. TPHUC 17-Inch Extender

Best for: For many fence sections.

Why it ranks #10: Its 17-inch extension and 20-piece pack suit buyers wanting many shorter posts, but the shorter stated height limits its fit for substantial extensions.

Twenty extenders make this TPHUC set suited to covering many fence positions, while each adds 17 inches of height and fits a 1-3/8-inch top rail. The galvanized steel has a rust-resistant finish, and the U-joint design adjusts to different angles for installation along varied fence lines.

The 20-piece quantity can serve projects with many extension points, while the 17-inch rise is a more modest increase than the taller options. A U-joint bracket pushes onto the top rail and adjusts to different angles, helping the posts follow changes in fence direction. TPHUC specifies a 1-3/8-inch outer-diameter fit and 2.5mm frame thickness. The galvanized steel’s rust-resistant finish and lightweight, portable construction support outdoor handling and installation.

Pros
  • Twenty extenders included
  • Adds 17 inches of height
  • U-joint adjusts for different angles
  • Galvanized steel has a rust-resistant finish
Cons
  • The 17-inch extension is shorter than the taller options.

Skip it if you want a 25.2-inch rise; GRELWT GRE-Post-35mm-9 adds that height on 1-3/8-inch rails.

Select TPHUC for a larger 20-position project where a 17-inch increase and angle adjustment suit the fence. Its specified fit is 1-3/8-inch top rail, and the rise is comparatively modest.

Full product details
BrandTPHUC
Item Weight‎19.86 pounds
Item model number‎TP013
Manufacturer‎TPHUC
Package Dimensions‎17.5 x 8.5 x 7 inches

Listed on Amazon as: 20 Pack 17" Chain Link Fence Extension for Dogs (1-3/8", Black)

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Avoid a rail-fit mismatch

A diameter mismatch is a practical reason an otherwise suitable extender may not attach to your fence. The products here distinguish between 1-3/8-inch and 1-5/8-inch rails: GRELWT, ICITYWALL, Wenses, BTRAM, and Hicarer list 1-3/8-inch compatibility, while TPHUC’s 25.2-inch model and Plum Fittings specify 1-5/8-inch posts. Hicarer cautions that its rail must be no more than 1-3/8 inches in outside diameter.

Measure the outside of the top rail rather than assuming all chain link fences use the same size. Also check whether a listing describes a top rail or line/end post; Plum Fittings specifically names 1-5/8-inch line or end posts.

The listed height alone does not establish a fit, and the supplied product data does not confirm universal compatibility across fence styles.

Plan for coverage and attachment load

A taller extension or a fence covering can change what the posts must support, so match the setup to the intended use rather than height alone. These products range from TPHUC’s 17-inch model to VEVOR’s 27.4-inch version, while several kits sit near 25 inches. Some listings mention attaching privacy screen, sun shade, mesh, or chain link material, but the supplied information does not establish a load rating or wind rating for those coverings.

ICITYWALL lists a 3 mm bracket and Wenses describes a knurled clamp surface; VEVOR describes an Ω-shaped bracket with adhesive backing. Those are design details, not proof that a given installation can safely carry a particular screen.

For exposed or covered fences, verify the extender’s attachment method and the fence’s condition, and do not treat added height as a guarantee against jumping or climbing.

Match the rail diameter

Choose an extender whose stated rail or post diameter matches your fence. Several options, including GRELWT, ICITYWALL, Wenses, BTRAM, and Hicarer, specify a 1-3/8-inch fit; Hicarer says the rail’s outside diameter must be no greater than 1-3/8 inches. TPHUC’s 25.2-inch model and Plum Fittings’ two-foot model specify 1-5/8-inch fit.

Leriton also describes its product as fitting 1-5/8-inch posts. Measure before ordering, especially because top rails and line or end posts may be described differently.

Buyers with a standard 1-3/8-inch rail have multiple choices, while owners of 1-5/8-inch posts should favor a product that explicitly names that size.

Choose extension height

Look for enough added height for your particular containment or privacy goal, while recognizing that the listed extension height is not the final fence height. The products range from 17 inches for TPHUC’s 20-pack to 27.4 inches for VEVOR’s 18-pack. BTRAM lists 19.5 inches, Hicarer about 20 inches, and several options—GRELWT, ICITYWALL, Wenses, and TPHUC’s larger-rail model—list roughly 25 to 25.2 inches.

Buyers seeking a modest addition may prefer the shorter end; those seeking the largest listed extension can consider VEVOR, provided its attachment compatibility suits their fence. Compare the intended final height with local requirements and site conditions, which are not specified in these product listings.

Check pack size and hardware

Compare the number of posts with the fence sections you intend to extend, and confirm what fastening pieces the package lists. Pack sizes vary from Leriton and Plum Fittings at five pieces to VEVOR at 18 and TPHUC’s 17-inch model at Several options provide nine extenders; GRELWT and ICITYWALL list bolts and nuts, while Wenses lists bolts, nuts, and 30 steel ties.

A larger pack can suit a longer run, but it does not establish how many posts your fence needs or whether spacing is appropriate. Buyers replacing or extending a short section may need fewer posts; those covering a longer run should count the posts first and verify whether the kit’s included hardware matches their installation plan.

For a 1-3/8-inch top rail and a roughly 25-inch addition, choose GRELWT 1-3/8-Inch Extender: it states the fit, height, adjustable bracket, and included bolts and nuts. If a 3 mm bracket and galvanized construction are priorities, ICITYWALL 1-3/8-Inch Extender is a close alternative. For a 1-5/8-inch rail, select TPHUC 1-5/8-Inch Extender for its 25.2-inch height, or Plum Fittings 1-5/8-Inch Extender for a two-foot extension on line or end posts.

Choose VEVOR 27.4-Inch Extender when the greatest listed height and an 18-piece pack matter, but confirm the attachment fits your rail because its listing does not state a rail diameter. For many shorter additions, TPHUC 17-Inch Extender supplies 20 pieces.

Frequently Asked Questions

How do I measure a chain link fence top rail before buying an extender?

Measure the rail’s outside diameter, not its circumference, and compare that measurement with the extender’s stated fit. If you have calipers, use them; otherwise, wrap a flexible measuring tape around the rail and divide the circumference by pi. The listed options include fittings for 1-3/8-inch and 1-5/8-inch rails.

Will adding fence extensions make a chain link fence secure for a determined dog?

No extension alone can guarantee security for a determined dog. A taller fence may help, but consider your dog’s size, jumping and climbing behavior, and the condition of the existing fence. Check that extensions are firmly attached and inspect the full fence for gaps or other weak points.

Can I attach privacy mesh or another covering to fence extension posts?

Possibly, but check the extension maker’s guidance and the covering’s installation requirements before attaching anything. Mesh or other coverings can place additional force on a fence, especially in wind. Confirm the posts, brackets, and existing fence are suitable, and avoid assuming an extension is designed to support a covering.

How much extra height should I choose?

Choose an extension height that suits your fence and intended use, while checking local rules and any property restrictions. The listed options range from 17 inches to 27.4 inches, with several around 25 inches. Remember that the extension adds to the existing fence height; it does not replace it.

What should I check before installing a fence extension?

Confirm the rail diameter, extension height, and number of pieces, then check whether the product listing specifies brackets or installation hardware. The GRELWT option, for example, lists a 1-3/8-inch fit, an adjustable U-bracket, and included bolts and nuts. Do not assume other products include the same hardware.

Final Words

Start by measuring your top rail, then choose an extension made for that diameter. For a 1-3/8-inch rail, GRELWT is the clearest overall choice, with a listed 25.2-inch extension, adjustable U-bracket, and included bolts and nuts. For a 1-5/8-inch rail, consider TPHUC or Plum Fittings.

Choose VEVOR for its listed 27.4-inch height only after confirming attachment fit, since its listing does not state a rail diameter.