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Round Tube Corner Sled Base Glides — Rectangular Base (Single Screw)

Round tube corner sled base glides rectangular base with single-screw mount at the runner bend on Ø 20 mm sled furniture. The extended 74 mm base spans the curve with one screw. L = 74 mm. W = 25 mm. H = 30 mm. Base H = 6.5 mm. Flat PA floor contact. Grey (RAL 7040). 18.5 g. Sold individually.

$3.61

4 = 1 chair · 8 = 2 chairs · 24 = 6 chairs

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📦 Sold in packs of 4 — quantity adjustable at checkout

Overview

Round Tube Corner Sled Base Glides Rectangular Base Single Screw

Corner sled base glides rectangular base with pad slot mount at the bend where the horizontal runner curves upward into the vertical riser on Ø 20 mm round tube sled furniture. The extended 74 mm base spans the full transition zone at the curve, providing floor contact where mid-runner glides cannot reach. This single-screw corner design provides floor protection at the most vulnerable contact point on a sled base chair. The bend concentrates the occupant’s weight on a small area, and without a corner glide, the bare metal tube scratches and dents the floor at this high-pressure point.

PA (polyamide) single-screw corner mount saddle glide for Ø 20 mm round tube sled runners. Corner sled base glides rectangular base with single-screw mount span the runner-to-riser bend and extended rectangular base. L = 74 mm. Grey. Sold individually.

Available: Corner Sled Base Glides Rectangular (Single Screw)

One configuration: Ø 20 mm saddle, single screw, grey, 18.5 g. This is the corner glide for Ø 20 mm sled furniture where the bend contacts the floor and needs protection.

Ø 20 mm / Single Screw / Grey

L = 74 mm extended base. Saddle offset for bend positioning. Single screw hole (Ø 5.7 mm). PA body. 18.5 g. For Ø 20 mm round tube sled frames with grey, silver, or light-finished frames.

For Ø 25 corner: corner rectangular base (Ø 25). For Ø 28 corner: corner pad slot (Ø 28). For Ø 20 mid-runner: rectangular base or round base pad slot. For custom colors, contact Business Solutions.

Single-Screw Corner Design for Ø 20 mm Tubes

The sled base glide range includes three corner glides. The two-screw rectangular base (Ø 25) serves Ø 25 mm tubes with two screws and flat PA. This single-screw version serves Ø 20 mm tubes with one screw. The single-screw design has a slightly longer base (74 mm vs. 72 mm) and uses a single-screw mount that simplifies installation at the bend. The three corner glides are not interchangeable because they serve different tube diameters with different saddle curves.

The single screw is positioned to secure the glide at the curve apex where the saddle cradles the tube. The extended base provides leverage that prevents the glide from rotating around the single screw point, despite having only one fastener. The 18.5 g weight (vs. 15.8 g for the Ø 25 two-screw version) reflects the additional material in the longer base and thicker wall construction. Corner sled base glides rectangular that provide secure bend coverage with minimal mounting hardware on Ø 20 mm sled furniture found in schools, offices, and waiting rooms.

Why the Bend Needs a Dedicated Glide

Mid-runner sled base glides like the rectangular base and rectangular base pad slot are designed for straight tube sections. Their flat saddles cannot cradle the curved tube at the bend. The corner glide’s saddle is shaped and positioned specifically for the curve geometry.

When an occupant leans back in a sled chair, weight shifts toward the rear of the runners, concentrating load at the rear bends. Without corner sled base glides, this concentrated load presses the bare metal tube into the floor at a small contact point. On hardwood, luxury vinyl, and polished concrete, this creates visible dents and scratches within days of regular use. The extended base distributes this concentrated load across 74 mm of floor contact area.

How to Install Corner Sled Base Glides Rectangular (Single Screw)

Single screw installation at the bend. Position the saddle at the curve apex and drive the single screw through the glide into the tube wall.

What you need
  • Corner sled base glides rectangular (Ø 20, single screw)
  • Self-tapping screw that fits the Ø 5.7 mm hole
  • Screwdriver or drill with screwdriver bit
  • Chair tipped or inverted for bend access
Installation steps
  1. Position the glide at the bend with the saddle cradling the tube at the curve.
  2. Align the extended base so it sits flat on the floor when the chair is upright.
  3. Drive the screw through the saddle into the tube wall.
  4. Repeat at each bend on both runners.
  5. Set the chair upright and confirm the base contacts the floor evenly.

Corner and Mid-Runner Glides as a Complete System

A fully protected sled chair needs both mid-runner and corner glides. For Ø 20 mm tubes, pair this corner glide with rectangular base mid-runner glides on the straight sections, or with round base pad slot glides if the floor requires PA6 pad protection.

A typical sled chair with 2 bends needs 2 corner glides plus 4 to 8 mid-runner glides. Some chairs have 4 bends (front and rear on each runner), requiring 4 corner glides. Count the floor-contact bends on your specific furniture to determine the corner glide quantity needed.

What Corner Sled Base Glides Rectangular (Single Screw) Solve

Floor protection at the runner bend on Ø 20 mm sled furniture. The National Wood Flooring Association (NWFA) recommends protective contact on all furniture contact points, and the bend is typically the most damaging contact point on a sled chair because of the concentrated weight when occupants lean back.

Eliminates bend damage

The 74 mm base distributes the concentrated bend load across a large PA contact area. On hardwood, luxury vinyl, and polished floors, the PA surface prevents the scratching and denting that bare metal bends cause. Corner sled base glides rectangular close the protection gap that mid-runner glides leave at the bend position.

Completes the Ø 20 protection system

With mid-runner glides on the straight sections and this corner glide at the bends, every floor contact point on a Ø 20 mm sled chair is covered. Unlike leaving any contact point unprotected, a complete glide system eliminates all metal-to-floor contact on the chair.

Choosing Between Corner Glides

Three corner sled base glides serve different tube sizes and applications. Choose based on your tube diameter.

This product (Ø 20)

Single screw. L = 74 mm. Grey. 18.5 g. For Ø 20 mm sled furniture.

Two screws. Flat PA. L = 72 mm. Black. 15.8 g. For Ø 25 mm sled furniture.

single-screw. 2 screws. Pad slot. L = 89 mm. Black/grey. 41.6 g. For heavy Ø 28 mm furniture.

Sizing and Bend Compatibility

Measure the outside diameter of the runner tube at the bend to confirm Ø 20 mm. The tube diameter is consistent through the curve because the tube is bent from a single piece, not joined. If the tube measures Ø 25 mm, use two-screw corner glides. If Ø 28 mm, use corner pad slot glides (Ø 28).

The bend radius varies by furniture manufacturer. The single-screw corner glide accommodates standard bend radii on Ø 20 mm commercial and institutional sled furniture. For unusually tight or wide bends, test-fit one glide before ordering for the full fleet to confirm the saddle sits at the curve apex and the base lies flat on the floor.

Materials and Construction

PA (polyamide) body. The same engineering polymer used across all sled base glides, furniture glides, leveling feet, and tube plugs in the catalog. PA provides high tensile strength for load bearing at the high-stress bend position, excellent abrasion resistance for the sliding contact surface, impact resistance for the rough handling that commercial sled chairs endure, and low friction for smooth chair movement.

The 6.5 mm wall thickness is thicker than standard mid-runner glides (5-6 mm) to handle the concentrated load at the bend. The grey color is molded into the PA compound during manufacturing, not painted or coated, so it does not chip, peel, or wear away with floor contact over the full service life of the corner glide.

Floor Surface Compatibility

Corner sled base glides rectangular provide PA floor contact at the bend position. This PA surface is suitable for most standard hard floor surfaces where general floor protection is the requirement. The bend is often the highest-priority protection point on a sled chair because of the concentrated weight at that location.

PA contact works well on
  • Commercial tile (ceramic, porcelain, VCT)
  • Polished and sealed concrete
  • Laminate and engineered hardwood
  • Standard hardwood with polyurethane finish
  • Luxury vinyl plank and tile (general use)
  • Rubber and linoleum flooring
For maximum scratch prevention

On premium hardwood or luxury vinyl where even PA contact marks are not acceptable, pair this corner glide with mid-runner pad slot glides like round base pad slot or rectangular base pad slot on the straight sections. The PA contact at the corner is still smoother and more protective than bare metal, even without a PA6 pad at the bend position.

How Many Corner Glides Do I Need?

Count the bends on each runner. Most sled chairs have 2 bends (one rear bend per runner), requiring 2 corner glides per chair. Some chair designs have 4 bends (front and rear on each runner), requiring 4 corner glides. Check the underside of your specific furniture to count the floor-contact bends before ordering.

Corner sled base glides rectangular are sold individually. For a fleet of 50 sled chairs with 2 bends each, order 100 corner glides plus a 10% spare stock (110 total). Order mid-runner glides separately for the straight sections. The combination of corner and mid-runner glides provides complete floor protection coverage on every sled chair in the fleet.

Wear Patterns at the Bend

Corner glides wear faster than mid-runner glides on the same chair because of the physics of sled chair seating. The bend position bears more weight when occupants lean back, and the concentrated contact at the curve apex creates higher pressure per square millimeter on the PA surface than any mid-runner position experiences. On chairs that are used heavily (classrooms, cafeterias, training centers), corner glides may need replacement more frequently than the mid-runner glides on the same runners.

Signs that a corner glide needs replacement: the PA base at the saddle area has worn thin enough that the tube is close to contacting the floor through the glide, the chair wobbles or tilts at the bend when the occupant leans back, or scratch marks reappear on the floor at the bend location despite the glide being in place. Replace worn corner glides immediately. The bend is the highest-damage contact point when unprotected, so allowing a worn corner glide to remain in service while the PA thins defeats the entire purpose of the installation and risks significant floor damage in a concentrated area.

Specifying Corner Sled Base Glides Rectangular for Projects

For furniture manufacturers, include corner sled base glides in the bill of materials alongside mid-runner glides. A complete Ø 20 mm sled chair specification includes: rectangular base mid-runner glides (quantity based on straight-section positions) plus this corner glide (quantity based on bends, typically 2 per chair). For chairs on scratch-sensitive floors, substitute the mid-runner glides with rectangular base pad slot versions for PA6 floor contact on the straight sections while using this corner glide at the bends. Include both types in the per-chair glide count from the initial design specification to ensure complete floor protection from day one.

For facility managers ordering replacement glides for an existing fleet, order corner and mid-runner glides in the ratio that matches your furniture. If each chair has 4 mid-runner glides and 2 corner glides, maintain that 2:1 ratio in your spare stock. Corner glides wear faster, so consider a higher spare ratio for corners (e.g., 3:1 corner-to-mid-runner in the spare inventory). For production quantities, visit Business Solutions.

Where Corner Sled Base Glides Rectangular Work Best

Ideal applications
  • Sled chairs with Ø 20 mm runners on hardwood or finished floors
  • School and classroom sled chairs
  • Conference and meeting room cantilever seating
  • Waiting rooms and lobby seating
  • Cafeteria and breakroom chairs
  • Any Ø 20 mm sled furniture where the bend contacts the floor
Consider alternatives when

Where People Use Corner Sled Base Glides Rectangular (Single Screw)

Commercial and institutional

Schools, training centers, conference rooms, waiting rooms, and cafeterias with Ø 20 mm sled chairs on finished floors. Corner sled base glides rectangular complete the floor protection system at the bend positions where mid-runner glides cannot reach. In schools where hundreds of chairs slide and stack daily, the bends take the most abuse. Without corner glides, the floor damage at each bend location accumulates into visible scratches and dents within weeks of a new school year. Order alongside rectangular base mid-runner glides for a complete Ø 20 mm sled chair glide kit that covers every contact point. Available in bulk. For commercial pricing, visit Business Solutions.

Retrofit

Existing sled chairs with mid-runner glides but no corner glides can be retrofitted by adding this corner glide at each bend. The distinctive arc-shaped scratch pattern at the bend location is the telltale sign that corner glides are needed. Adding corner sled base glides closes the protection gap without modifying the existing mid-runner glides on the straight sections. The retrofit takes minutes per chair: tip the chair, position the corner glide at each bend, drive a single screw per glide.

For residential sled chairs on hardwood, the same single screw retrofit applies. For chairs with self-adhesive pads on other furniture in the same room, corner glides provide consistent PA floor protection on the sled chairs that matches the pad protection on standard-leg furniture.

Maintenance

Inspect corner sled base glides rectangular every 6 to 12 months on heavily used chairs. The bend position wears faster than mid-runner positions because of the concentrated weight when occupants lean back. Look for thinning of the PA base under the saddle area where the load is highest. Check the screw for tightness. On chairs that are stacked regularly, also check that the corner glide has not been dislodged or cracked from stacking compression at the bend.

Corner sled base glides rectangular are sold individually. Order the quantity that matches the number of floor-contact bends on your furniture (typically 2 per standard sled chair, 4 per chair with front and rear bends). Keep spare stock alongside your mid-runner glide spares for scheduled maintenance. In commercial environments, replace corner glides proactively during scheduled maintenance rather than waiting for visible floor damage to appear. Once the PA wears through at the bend, floor damage begins immediately. For tables in the same environment, adjustable leveling feet and tube plugs complete the floor protection system across all furniture pieces.

Specifications

Specification Details
Product Type
Round Tube Saddle Glide with Rectangular Sled Base (Type B/Single Hole/Flat)
Materials
PA (Polyamide) saddle and base
Floor Compatibility
Hard floors and low-pile carpet
Furniture Compatibility
Sled chairs, benches, institutional and office seating
Leg Compatibility
Ø 20 mm round tubular frames
Base Size
74 mm × 25 mm (2.91" × 0.98")
Mounting Style
One central screw hole (screw not included)
Color Options
Grey
Installation Type
Press-fit with single screw fixing
Key Benefits
Floor protection, stable support, modern appearance
Indoor / Outdoor
Indoor | Covered Outdoor | Uncovered Outdoor

Size Chart

Tube Diameter (Ø2) Base Dimensions (L x W) Hole Center (L2) Hole Diameter (Ø) Height (H) Height (H1)
20 mm
74 X 25 mm
9 mm
5.7 mm
30 mm
6.5 mm

Frequently Asked Questions

Why does this corner glide use only one screw?

The single-screw design simplifies installation at the bend on Ø 20 mm tubes. The extended 74 mm base provides enough leverage to prevent the glide from rotating around the single screw point. One screw is sufficient for the lighter loads on Ø 20 mm sled furniture. The Ø 25 and Ø 28 corner glides use two screws because they serve heavier furniture.

Why is this only available in grey?

This corner glide is manufactured in grey (RAL 7040) only. Grey blends with most sled frame finishes at the bend position where the glide is minimally visible. For custom colors, contact Business Solutions.

Can I pair this with the rectangular base mid-runner glides for Ø 20?

Yes. Use rectangular base mid-runner glides on the straight sections and this corner glide at the bends. Both fit Ø 20 mm tubes. The corner glide covers the transition zone that mid-runner glides cannot reach.

Is the 74 mm base longer than the Ø 25 corner glide?

Yes. The Ø 25 corner is 72 mm. This single-screw corner is 74 mm. The slightly longer base provides more coverage across the bend on Ø 20 mm frames.

How does this compare to the other corner glides?

Three corner glides serve different tube sizes. The Ø 25 two-screw version has a 72 mm base with flat PA. This Ø 20 single-screw version has a 74 mm base with flat PA. The Ø 28 pad slot version has an 89 mm base with PA6 pad. Choose based on your tube diameter.

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