Hospitality-grade floor protection · Sizing help before you order · Apply for a business account
Sizing help · Apply for a business account
Hospitality-grade floor protection · Sizing help before you order · Apply for a business account
Sizing help · Apply for a business account
On an oval tube end that’s on display, a plain flat finish looks unfinished. This curves out into a smooth dome, rounding off chair backs, armrest ends, and exposed frame tops. Same press-fit PE body as the standard oval plug, with a decorative head. Black and grey.
We make this size in production runs, so there is none on the shelf today. Tell us how many you would want and you go on the list for it. When enough people ask for a size, we run it, and the people who asked hear about it first.
We stock a limited range of tube sizes and wall thicknesses. Tell us the size you need and we will confirm availability and pricing by email.
Buying in volume? See business pricing & samples ↓
Standard oval tube plugs seal and finish the tube end with a flat profile that sits flush. That is enough for floor-contact legs and general use. But on visible, non-floor-contact tube ends where appearance matters, a flat plug adds nothing to the look. Domed oval tube plugs replace the flat head with a smooth, rounded dome that curves outward from the oval tube edge. The dome creates a raised, finished endpoint that turns an exposed oval tube end into a deliberate design detail.
Same PE construction and flexible body as standard oval tube plugs. Same press-fit installation. The only difference is the head: a smooth dome instead of a flat disc. Domed oval tube plugs are rounded head oval tube plugs for furniture where a decorative finish on visible oval tube ends adds the right visual detail. : 15 × 40, 20 × 40, and 25 × 50 mm. Black and grey.
Same three measurements as all oval tube plugs: short axis (width), long axis (length), and wall thickness. Domed oval tube plugs are available in 15 × 40, 20 × 40, and 25 × 50 mm. If your tube does not match one of these three sizes, check standard flat head oval tube plugs for a compatible size.
Use calipers across the narrowest point of the oval opening, outside edge to outside edge. The short axis must be 15, 20, or 25 mm for domed oval tube plugs.
Use calipers across the widest point. The long axis must be 40 or 50 mm. Match the short and long axis combination to one of the three available sizes.
Use calipers at the tube end. The 15 × 40 requires 1 to 1.5 mm wall. The 20 × 40 and 25 × 50 require 1.5 to 2 mm wall. The thicker walls on the larger sizes support the heavier furniture they typically appear on.
Same press-fit installation as standard oval tube plugs. The domed head does not change the process. Align the short axis to the short axis and the long axis to the long axis, then press in. The dome faces outward. Domed oval tube plugs press in by hand at both available wall thickness ranges.
Every benefit of a standard oval tube plug, plus a rounded decorative profile that transforms exposed oval tube ends from unfinished holes into intentional design details. The National Wood Flooring Association (NWFA) recommends protective measures on all furniture legs, and these plugs contribute by sealing the tube end even on non-floor-contact applications.
The primary reason to choose domed over flat. The rounded profile adds visual softness and intentional design to exposed oval tube ends. On retail fixtures, restaurant seating, hospitality furniture, and showroom displays, visible tube ends finished with these plugs communicate attention to detail. The dome follows the oval contour, creating a smooth raised endpoint that complements the curved aesthetic of oval tubing. These are the decorative oval tube plugs that design-conscious environments demand. The oval tube plugs decorative head that transforms a plain tube end into a finishing detail.
Same sealed end as flat head oval plugs. The domed profile does not affect the seal. Moisture, debris, and insects are kept out of the tube interior. On steel tubing, this prevents the internal corrosion that weakens the structure from the inside out. Domed oval tube plugs protect the tube interior regardless of orientation. Unlike leaving furniture hardware unprotected, sealed ends extend the life of the frame.
Same resonance reduction as flat head oval plugs. The PE body fills the oval tube opening and absorbs the vibration that hollow tubes amplify. In environments with many metal-framed chairs, every sealed tube end reduces the cumulative metallic noise. Domed oval tube plugs provide the same acoustic benefit as flat head plugs with a decorative visual upgrade on the visible ends.
The rounded dome concentrates floor contact at the dome center instead of distributing weight across the full oval area. For floor-contact legs, use flat head oval tube plugs that spread load evenly. For floor contact with additional scratch protection, apply a round self-adhesive furniture pad to a flat head plug. Domed oval tube plugs are designed for the visible tube ends that do not touch the floor.
All oval plug variants share the same PE body. The choice comes down to appearance, floor contact needs, and the visual effect you want on the exposed tube end.
Flat head oval tube plugs sit flush with the tube end. No protrusion, no visual accent. Domed oval tube plugs add a gentle rounded curve above the tube edge. Choose flat for floor-contact legs and utilitarian applications. Choose domed for visible, decorative tube ends where the rounded profile adds design value.
Extended oval tube plugs have a deeper insertion body for extra grip in thin-walled tubes. They use a flat head, not domed. Extended solves a grip problem. Domed solves an appearance problem. If you need both deeper grip and a decorative head, no combined variant exists currently.
Angled oval tube plugs correct leg tilt on splayed oval legs. They use a flat, angled base for floor contact. Domed oval tube plugs have a raised, rounded head for decorative non-floor-contact use. Different purposes, different ends of the furniture.
Domed round tube plugs fit round tubes. Domed oval tube plugs fit oval tubes. Same decorative concept, different tube shapes. The dome on an oval plug follows the oval contour rather than a circular one. Always match plug shape to tube shape.
Same oval cross-section, different head styles, depths, and features. Choose the variant that matches your application.
Rounded decorative head. Black, grey.
| Fits Tube (W) | Fits Tube (L) | Insert Depth (H) | Head Height (H1) | Tube Wall Thickness (T) |
|---|---|---|---|---|
| 15 mm (0.59″) | 40 mm (1.57″) | 12 mm (0.47″) | 7 mm (0.28″) | 1 to 1.5 mm (0.04″ to 0.06″) |
| 20 mm (0.79″) | 40 mm (1.57″) | 12 mm (0.47″) | 10 mm (0.39″) | 1.5 to 2 mm (0.06″ to 0.08″) |
| 25 mm (0.98″) | 50 mm (1.97″) | 14 mm (0.55″) | 13 mm (0.51″) | 1.5 to 2 mm (0.06″ to 0.08″) |
Tube wall thickness is a fit requirement, not a tolerance.
| Specification | Detail |
|---|---|
| Material | Polyethylene, a tough low-friction plastic |
| Sizes | 3 sizes |
| Width (W) | 15 to 25 mm (0.59″ to 0.98″) |
| Length (L) | 40 to 50 mm (1.57″ to 1.97″) |
| Height (H) | 12 to 14 mm (0.47″ to 0.55″) |
| Head height (H1) | 7 to 13 mm (0.28″ to 0.51″) |
| Tube wall thickness (T) | 1 to 2 mm (0.04″ to 0.08″) |
| Mounting | Pushes into the tube, held by ribs |
| Colors | Black, Gray |
| Floor compatibility | Hollow tube legs |
| Minimum order | Sold in a minimum of 4, then any quantity you need |
The flat head sits flush with the oval tube end. The domed head curves outward as a smooth, raised profile that follows the oval contour. The dome adds visual depth and a finished, intentional look to exposed tube ends. On chair backs and armrest ends, the dome signals that the tube end was designed, not just capped.
Not ideal. The rounded profile concentrates floor contact at the dome center instead of distributing weight across the full oval area. For floor-contact oval legs, use standard flat head oval tube plugs. Domed oval tube plugs are designed for visible, non-floor-contact tube ends.
The 15 × 40 mm is a specialized size that only exists as a domed variant (no flat head version). Current demand supports black only. The 20 × 40 and 25 × 50 mm sizes come in both black and grey. For white or custom colors, contact Business Solutions.
Yes. Domed oval tube plugs work best on visible tube ends like chair back uprights and armrest tubes where the rounded profile adds a finished look. For floor-contact legs on the same piece, use standard oval tube plugs or oval tube plugs with a pad slot for PA6 protection. The oval profile dimensions match across the range, so all oval plugs seat into the same tube openings.
No. They are different tube sizes. 15 × 40 has a longer oval profile (40 mm long axis) than 15 × 30. The domed 15 × 40 plug only fits 15 × 40 mm oval tubing. It will not fit 15 × 30 mm tubes. Measure both axes of your tube to confirm the correct size.
Domed Oval Tube Plugs
Outfitting a hotel, restaurant, school, healthcare facility, or large furniture build? Superior Glide supports volume orders with bulk pricing tiers, free physical samples, and dedicated quote pricing for accounts placing larger orders.
Bulk pricing tiers, net terms for qualified buyers, and dedicated support for facility managers and procurement teams.
Hold the product, test the fit, check the finish. We ship samples free so you can evaluate before committing to a full order.
For orders above standard volume tiers, we’ll prepare a custom quote with consolidated shipping and your account’s tier pricing.
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