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Pad Slot Round Tube Plugs

Two jobs, one press-fit piece: seal the open end of a hollow round leg and protect the floor underneath it. The PE body grips the tube wall with flexible ribs, and the PA6 fiber pad seated in the head slides clean across hardwood, tile, laminate, vinyl, and stone. No separate pad to stick on. Fits Ø 22 mm and Ø 28 mm round tube.

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Overview

Pad Slot Round Tube Plugs

Standard tube plugs seal the tube and provide basic PE floor contact. That is enough for many applications, but it is not enough for hardwood, engineered wood, or any floor where scratches show. Pad slot round tube plugs add a recessed channel in the head that accepts a PA6 needle-punched fiber pad. The plug seals the tube. The PA6 pad protects the floor. Two functions in one press-fit product. The PA6 pad is not included. It is purchased separately and pressed into the recessed channel. The same PA6 surface used in all our furniture glides and self-adhesive pads, integrated directly into the plug head instead of applied separately. These PA6 pad tube plugs for furniture are also referred to as pad slot furniture leg plugs, floor protection tube plugs, or tube plugs with floor protection.

: Ø 22 mm (1.5 to 2 mm wall) and Ø 28 mm (1 to 2 mm wall). Black and grey. Same PE body and flexible ribbed grip as the flat head range. Same press-fit installation. Pad slot round tube plugs are tube plugs with a floor protection channel built in.

How to Measure Your Tube

Same two-measurement process as all tube plugs: outside diameter (OD) and wall thickness. Pad slot round tube plugs require either Ø 22 mm (1.5 to 2 mm wall) or Ø 28 mm (1 to 2 mm wall). If your tube does not match these specifications, use a flat head plug and add a separate self-adhesive pad for floor protection.

Step 1. Measure the OD

Use calipers or a ruler across the widest point of the tube opening. Outside edge to outside edge. The OD must be Ø 22 mm or Ø 28 mm for pad slot round tube plugs to fit.

Step 2. Measure the wall thickness

Use calipers at the tube end, or calculate: (OD minus ID) / 2. Ø 22 mm requires 1.5 to 2 mm wall. Ø 28 mm requires 1 to 2 mm wall.

Step 3. Confirm both match

Both OD and wall thickness must fall within the listed range. A pad slot round tube plug sized for Ø 22 mm / 1.5 to 2 mm wall will not grip properly in a Ø 22 mm tube with 1 mm walls.

Floor-contact application: Pad slot round tube plugs are designed for floor-contact legs where the PA6 pad needs to touch the floor surface. Measure the legs that contact the floor. For visible, non-floor-contact tube ends on the same furniture, use flat head plugs or a decorative head style.

How to Install

Same press-fit installation as all our tube plugs. The pad slot head does not change the process. Install the PA6 pad into the channel before pressing the plug into the tube. Pad slot round tube plugs press in by hand at both available wall thicknesses. A rubber mallet provides extra seating force if needed.

What you need
  • The correct pad slot round tube plug matched to your OD (Ø 22 or Ø 28 mm)
  • The matching PA6 pad insert: Ø 14 mm for Ø 22 mm plug, Ø 20 mm for Ø 28 mm plug (sold separately)
  • A rubber mallet (optional, for snug fits)
  • Clean, dry tube ends free of burrs or sharp edges
Installation steps
  1. Inspect the tube end. Remove any burrs, sharp edges, or debris from the inside of the tube opening.
  2. Press the PA6 pad insert into the recessed channel. It should sit flat with the fiber surface facing outward (toward the floor).
  3. Align the plug with the tube opening. The PA6 pad faces outward. The ribbed body faces into the tube.
  4. Press the plug into the tube by hand. The flexible ribs compress as the plug enters, then expand against the inner wall. Push until the head sits flush with the tube edge.
  5. Set the furniture back down. The PA6 pad contacts the floor immediately. No cure time needed.
Pad replacement: when the PA6 pad wears, remove it from the recessed channel, clean the slot, and press a new pad insert in. The PE plug body stays in the tube. You replace the wear surface, not the entire plug. This makes pad slot round tube plugs more economical over time than full plug replacement. Order replacement pads: Ø 14 mm for Ø 22 mm plug · Ø 20 mm for Ø 28 mm plug.

What Pad Slot Round Tube Plugs Solve

Every benefit of a standard tube plug, plus dedicated hard-floor scratch protection from the same PA6 fiber used across our entire glide and pad range. The National Wood Flooring Association (NWFA) recommends protective pads on all furniture legs as a first line of defense for hardwood. Pad slot round tube plugs provide that integrated PA6 protection on hollow metal legs, with the pad ordered separately and seated in the channel.

Hard-floor scratch protection

The primary advantage over standard flat head plugs. When a PA6 pad is seated in the channel, it provides the same low-friction, scratch-free floor contact as our self-adhesive furniture glides and pads. On hardwood, engineered wood, laminate, vinyl, tile, and polished concrete, the PA6 surface moves quietly without scratching, scuffing, or marking. Unlike leaving metal or bare PE on smooth, hard floors, the PA6 pad prevents damage at the source.

Tube sealing and moisture protection

Same sealed end as every other plug in the range. The pad slot design does not compromise the seal. Moisture, debris, and insects are kept out of the tube interior. On steel tubing, this prevents internal corrosion. Pad slot round tube plugs provide smooth, hard floor protection on the outside and corrosion protection on the inside.

Noise reduction

PA6 is quieter than PE on smooth, hard floors. The needle-punched fiber absorbs contact noise that the harder PE surface transmits. In restaurants, cafeterias, offices, and conference rooms where chairs move constantly, pad slot round tube plugs with PA6 inserts reduce both scraping noise and the metallic ring that hollow tubes amplify.

Integrated channel, replaceable pad

The PA6 pad sits in a recessed channel that holds it mechanically. It cannot shift or fall out the way a self-adhesive pad applied to a flat plug head can. When the pad wears, replace just the pad insert. The plug body stays in the tube. The channel provides a more secure seat for the pad than adhesive alone.

Floor Compatibility

The PA6 pad in pad slot round tube plugs protects every smooth, hard floor type. PA6 is chemically inert and will not react with floor sealers, wax, or cleaning products.

Hardwood: solid and engineered, all species
Parquet, bamboo, reclaimed wood
Laminate: all types and AC ratings
Luxury vinyl: LVP, LVT, sheet vinyl
Ceramic and porcelain tile
Natural stone: marble and granite (polished)
Concrete: sealed, polished, epoxy-coated
Cork flooring
Linoleum and Marmoleum

All Round Tube Plug Head Styles

Every variant uses the same internal ribbed PE body. The head determines floor behavior, appearance, and specialized function.

Flat Head (Standard)

Flush finish, basic PE floor contact. Ø 10 to 80 mm.

Conical Head

Tapered peak. Ø 30 mm. Decorative, non-floor-contact.

Domed Head

Rounded dome. Ø 16 and 26 mm. Subtle decorative finish.

Half-Sphere Head

Full hemisphere. Ø 16 to 30 mm. Bold decorative effect.

Anti-Slip TPE

Rubber grip. Ø 28 mm. Prevents sliding on smooth, hard floors.

Pad Slot ← You are here.

PA6 pad channel for hard-floor scratch protection. Ø 22 and 28 mm. Black and grey. Pad sold separately.

Angled

For splayed or tilted legs. Base sits flat at an angle.

Size Chart

Fits Tube (Ø)Pad Slot Ø (Ø1)Tube Wall Thickness (T)
22 mm (0.87″)14 mm (0.55″)1.5 to 2 mm (0.06″ to 0.08″)
28 mm (1.10″)20 mm (0.79″)1 to 2 mm (0.04″ to 0.08″)

Tube wall thickness is a fit requirement, not a tolerance.

Specifications

SpecificationDetail
MaterialPolyethylene, a tough low-friction plastic
Sizes2 sizes
Diameter (Ø)22 to 28 mm (0.87″ to 1.10″)
Pad slot diameter (Ø1)14 to 20 mm (0.55″ to 0.79″)
Height (H)12 mm (0.47″)
Head height (H1)5 mm (0.20″)
Slot depth (H2)0.5 to 1 mm (0.02″ to 0.04″)
Tube wall thickness (T)1 to 2 mm (0.04″ to 0.08″)
MountingPushes into the tube, held by ribs
ColorsBlack, Gray
Floor compatibilitySmooth hard floors
Minimum orderSold in a minimum of 4, then any quantity you need

Frequently Asked Questions

What is the PA6 pad in the slot and how does it protect floors?

The PA6 pad is the same needle-punched polyamide 6 fiber used in all our furniture glides and self-adhesive pads. It is sold separately and pressed into the recessed channel in the plug head, where it contacts the floor directly. PA6 provides low-friction, scratch-free movement on hardwood, tile, laminate, vinyl, and stone. Unlike the flat PE head on standard round tube plugs, the PA6 pad is specifically engineered for hard-floor protection. Order the correct size alongside the plug: Ø 14 mm for the Ø 22 mm plug, Ø 20 mm for the Ø 28 mm plug.

Can I replace the PA6 pad when it wears out without replacing the whole plug?

Yes. The PA6 pad sits in a recessed slot and can be replaced independently. Remove the worn pad, clean the channel, and press a new pad insert into the slot. The PE plug body stays in the tube. This makes pad slot round tube plugs more economical over the long term than replacing entire plugs when the floor-contact surface wears.

How do pad slot round tube plugs compare to using a standard plug plus a separate self-adhesive pad?

Pad slot round tube plugs integrate the pad into the plug head in a recessed channel. The pad cannot shift, peel, or fall off because it is held by the channel walls. A separate self-adhesive pad applied to a flat head plug relies on adhesive alone, which can peel under lateral movement.

Why are only Ø 22 mm and Ø 28 mm available?

These two diameters cover the most common commercial and residential chair tubing. Ø 22 mm handles lightweight dining chairs and office seating. Ø 28 mm handles heavier commercial chairs and bar stools. For other diameters, use flat head round tube plugs and add a round self-adhesive furniture pad for floor protection.

Do pad slot round tube plugs slide or grip?

They slide. The PA6 pad has a low coefficient of friction, the same surface used in all our furniture glides and pads. Pad slot round tube plugs are designed for smooth, quiet movement on smooth, hard floors with scratch protection. If you need grip instead of sliding, use anti-slip round tube plugs.

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