Top 10 Best 2x2 square tubing caps in 2026

Last Updated - 6/6/2026

🏆Best Choice

ZYYC

4 Pack 2'' Inch End Cap Square Tubing Black Plastic Plug,Tubing Post End Cap Suitable for Square TubeSquare Plastic Plug, Tubing Post End Cap

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Applicable size：The size of the plastic plug is 2in*2in, suitable for square pipes with an outer diameter of 2in*2in an inner diameter of 1.75in-1.92in.
•Material: Made of high-quality plastic, durable and wear-resistant. Waterproof and compressive wear proof.
•Uses:Provides long lasting protection， great for preventing scuffs on wood floor or as protection glides on chair tips, bench feet, table legs, bar stool foot sliderschair leg protectors, patio furniture inserts, and much more.
•The 2"x2"Inch threaded inner plug can be used as a durable solution for home or outdoor projects, including replacement of fence/door railing covers, trailer frame ends, rod tube rod caps, wrought iron steel decorative plugs or any square opening. Not easy to deform, firmer, not easy to fall off, easy to install
•We believe that our high qualityTubing Post End Cap, will exceed your expectations. If you have questions, please contact us any time. We will try our best to solve your problems.

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$5.98

$6.98

-14%

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WZB

WZB, 2 Inch 2x2 Square Tube End Cap Plastic Plugs 12 Pack, 2 Inch 2x2 Square Tubing Plug 2x2 Tube End Caps Fence Post Pipe Cap Cover Tubing Insert Chair Glide Finishing Plugs, Black

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•◆【Item Dimension】 - You will get 20pcs 2x3 surnews square plastic plugs.

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$4.99

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Hydanle

8 Pack 2 Inch Square Plastic Plugs,Hydanle 50mm×50mm Insert End Caps for Square Tubing Post

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•✅These heavy duty tubing post end caps Fits 2" OD square tubing (2"x2") with INSIDE hole diameters (ID) from1.85" to 1.9" and wall thickness of .02" - .079" Steel Pipe, package quantity 8
•✅Flexible ridges or straps snugly hold these square plastic tubing plugs in place
•✅The square plugs are made of black LD polyethylene, these high-grade plastics black ribbed plugs work great for preventing scuffs on wood floor or as protection glides on bench feet, bar stool foot sliders, patio furniture, table legs, chairs legs, metal bed legs, couch legs and much more
•✅ The caps for square tubing also give a finished sleek look for many small projects: Suitable for trailer frame ends, bike rack fittings, wrought iron steel, fence post toppers, luggage racks iend inserts, step ladder caps, gate rail post covers, Fitness Equipment ends,steel kayak rack end caps and any square tubing end caps
•✅ Easy to install 2"x2" plugs are also designed to hold up against impact abuse, and harsh weather conditions

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$9.99

$14.99

-33%

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Prescott Plastics

Prescott Plastics 2-Inch (50.8mm) Square Rubber Hole Plugs, Flexible Black Vinyl End Caps for Metal Tubing and Fences, Rubber Caps for Glide Protection from Chairs and Furniture, Made in USA - 4 Pack

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•HOW TO FIT: Fits 2 square tube or pipe (2x2 OUTSIDE diameter) & can stretch up to 1/16” larger for a snug fit without tearing or splitting. 1 deep / tall to provide a secure fit.
•EASY TO INSTALL: These easy to install 2.0 two inch push-on caps serve as a long-lasting solution for many household, outdoor, & marine boat dock projects including replacements for fencing railing posts, steel gate rail stopper, flexible rod / rebar or wrought iron tube caps, thread bolt screw or nut safety, hub cap sheath, or finishing any sqaure tubing.
•FLOORING PROTECTION: Prescott Plastics black ribbed plugs prevent scuffs on wood and other natural floors. They provide a protective “glide” for chair tips, bench feet, table legs, bar stools, patio furniture, and other furniture designed for furniture inserts and plugs.
•PREMIUM QUALITY PLUGS: Our plugs and inserts are designed to hold up in all harsh weather conditions and high traffic areas.
•MADE IN USA: These Plastic Plugs are specially designed and produced in USA to maintain quality, endurance and durability.

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$17.99

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TFIRY

2 Inch (50 mm) Square Plastic Plugs Tubing End Caps for Square Tubing Post (4 Pack)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Detailed size: The size of the plastic plug is 2in*2in, suitable for square pipes with an outer diameter of 2in*2in and an inner diameter of 1.75in-1.9in.
•Material: Made of high-quality plastic, the tubing plug is lined with helical wire, which fits tightly, is easy to install, and has a wide range of adaptability.

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$4.09

$5.69

-28%

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Yeetandoo

4 Pcs 2 Inch 2x2 Square Tube End Caps - Black Plastic Finishing Plugs for Metal Tubing, Fence Posts, and Cover Chair Glides (4)

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Upgrade the safety and appearance of your metal square tubing with our plastic end caps. These 2" square tubing caps are designed to fit snugly over 2-inch OD square tubing with a wall thickness of 0.039" - 0.098". Their ribs design ensures a secure grip inside the tube, providing impact and abrasion resistance for long-lasting protection. NOTE: When you buy before, please check size of the plastic plug is suitable for your tubing.
•Our end caps for metal tubing are the perfect solution for preventing scuffs on wood floors and protecting furniture. These plastic caps serve as chair glides, bench feet, and table leg protectors, ensuring your floors and furniture remain scratch-free. Their versatility makes them ideal for a wide range of applications, from home to commercial settings.
•Simplify your project with our easy-to-use square tubing caps. These plastic end caps offer a neat, safe finish to tube ends, preventing dirt and dust ingress without the need for tools. Installation is a breeze—simply insert by hand within minutes—and enjoy the long-lasting solution for both indoor and outdoor projects.
•Our square tubing end caps are not just for metal square tubing; they are a multi-purpose solution for a variety of surfaces. Use these plastic end caps for fence posts, furniture end covers, fitness equipment, gate rail post covers, and more. Their universal design makes them an essential addition to any DIY enthusiast's toolkit.
•Give your projects a professional finish with our cap plastic end caps. These 2" square tubing caps are designed to fit over square openings, providing a high-quality, durable cover for metal square tubing. They are perfect for wrought iron, steel finishing plugs, bike rack fittings, and more, ensuring a polished look that lasts.

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$3.99

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Jetec

Jetec 20 Pack 2x2 Square Tube End Cap Plastic Plugs Tube Plugs 2x2 Square Tubing Caps for Post Fence Pipe Cover Chair(2 Inch)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Sufficient for Daily Use: there are a total of 20 pieces of 2x2 square tubing caps in one package, which is easy to install, beautiful and sturdy, no peculiar smell, enough quantities for meeting your needs
•Safe Material: these 2 inch square tubing caps are made of PE plastic with no special smell, and they are exquisite in workmanship, thick and wear-resistant, regular in shape and not easy to deform
•Size information: these square tubing caps measure 2 inches long, 2 inches wide and 0.7 inches high, which can go well with 2 inch pipes with an outside diameter of 2 inches
•Easy installation: select the appropriate square plug, align with the pipe mouth, push in, and if the size of the inner plug is a little larger, you can strike appropriately, or trim the blade with pliers, and then install
•Wide occasions: these plugs are suitable for office furniture, pipe shelves, home appliances, sports equipment, and other areas with exterior decoration requirements; Note: before you buy, check the size of the product to make sure it works

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$8.49

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OUTWATER

Outwater Plastic 2-1/2" Square Insert End Caps for Tubing, Finishing Plug for Square Tubing Chair Glide, Floor Protector, Fits Multi Gauge Tubing, USA Made, 10 Pack

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•PACK OF 10 - These square end caps are designed to fit inside 2.5" square, 14 - 23 gauge tubing. *not intended for iron pipe*
•MULTIPURPOSE - Perfect for covering railing posts, gate posts, fence posts, chair legs, table legs, fitness equipment, patio furniture, stools, tube closures, and pipe plugs; Ideal for a wide range of applications.
•HEAVY DUTY INDUSTRIAL STRENGTH - Made of strong low density Polyethylene in textured Matte Black finish.
•EASY INSTALLATION - No adhesive or screws required. End cap can be easily pushed into tube hole with hand or mallet.
•GREAT PROTECTION - Prevents dirt and moisture from entering tube. Protects floors from scuffs and scratches by working as furniture glide. Smoothly glides on hardwood, carpet, linoleum.

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$9.99

$13.99

-29%

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TalyRob

2 Inch Square Tubing End Cap Plug, 2"x2" Plastic Insert Finishing Hole Plugs for Fence Post Pipe Cover Tube Chair（Black,12 Pack）

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•【You Will Get】：12 pieces 2x2 inch square plastic tube plugs,which are easy to install, beautiful and durable, no peculiar smell, enough quantities for meeting your needs.
•【High Quality Material】：Our tube plugs are made of black polyethylene plastic,thick and wear-resistant,regular in shape and not easy to deform,will not chip,peel,corrode.
•【Size Information】：Suitable for square pipes with an outer diameter of 50X50mm（2''x2''） and a wall thickness of 0.6-2mm.
•【Easy to Use】：Built with multiple ribs for easy install and secure fit. If the tube wall thickness is greater than 2mm, you can trim the tube plug ribs before installing.Or the wall thickness of the square tube is too thin, less than 0.6mm, it will be loose during use, you can use the raw tape to wrap it up before using.
•【Wide Application】：These plugs are widely used in fence posts,furniture end caps, office furniture, pipe shelves, home appliances, sports equipment etc. NOTE: Please confirm the size before purchase to make sure it works.

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$7.99

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Prescott Plastics

Prescott Plastics 2" (50.8mm) Outer Perimeter Ribbed Plastic Hole Plugs, Square Black Metal Tubing End Caps, Strong Furniture Leg Inserts, Impact & Weather Resistant, Made in The USA - 4 Pack

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•HOW TO FIT: 2" (Two Inch) Outer Dimension Square Tubing (2X2) With Inside Hole Diameters (Id) From 1 3/4" To 1 15/16" ( 1.75" To 1.93") And Wall Thickness Of .040" - .123" (10-20 Gauge)
•EASY TO INSTALL: High-grade Prescott Plastics black ribbed plugs work great for preventing scuffs on wood floor or as protection glides on chair tips, bench feet, table legs, bar stool foot sliders, chair leg protectors, square tube end, patio furniture inserts, and much more.
•FLOORING PROTECTION: Prescott Plastics black ribbed plugs prevent scuffs on wood and other natural floors. They provide a protective “glide” for chair tips, bench feet, table legs, bar stools, patio furniture, and other furniture designed for furniture inserts and plugs.
•PREMIUM QUALITY PLUGS: Our plugs and inserts are designed to hold up in all harsh weather conditions and high traffic areas.
•MADE IN UK: These Plugs are specially designed and produced in UK to maintain quality, endurance and durability.

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$10.99

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