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
A plain flat plug looks like exactly what it is on a tube end people actually see. This one rises in a smooth cone to a central peak, giving exposed frame tops and chair backs a finished look instead of a capped-off pipe. The ribbed PE body press-fits like any flat plug. Fits Ø 30 mm tube. Black.
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 flat head tube plugs seal and finish the tube end, but they add nothing to the look. Conical head round tube plugs give hollow round furniture legs a tapered, raised profile that turns a plain tube end into a deliberate design detail. The cone rises from the tube edge to a smooth central peak, adding visual depth to chair backs, exposed frame ends, fixture tops, and any tube end that is visible to the user. Decorative tube plugs for furniture where appearance matters as much as function.
Same PE construction and flexible ribbed body as the flat head range. Same press-fit installation. The only difference is the head: a tapered cone instead of a flat disc. Conical head round tube plugs are available in one size: Ø 30 mm with 3 to 4 mm wall thickness. Black. Tapered tube end plugs for hollow round tubing where the tube end is visible.
Same two-measurement process as all tube plugs: outside diameter (OD) and wall thickness. Conical head round tube plugs require Ø 30 mm OD with 3 to 4 mm wall thickness. If your tube does not match these specifications, check the other head styles for a compatible size.
Use calipers or a ruler across the widest point of the tube opening. Outside edge to outside edge. The OD must be Ø 30 mm for these plugs to fit.
Use calipers at the tube end, or calculate: (OD minus ID) / 2. The wall thickness must be between 3 mm and 4 mm for the ribs to grip properly.
Ø 30 mm OD and 3 to 4 mm wall. If your tube is Ø 30 mm but with 1 to 2 mm walls, the conical head plug will not grip. Use a flat head plug sized for Ø 30 mm / 1.5 to 2 mm wall instead.
Same press-fit installation as all our tube plugs. The conical head does not change the process. A rubber mallet is recommended for the 3 to 4 mm wall thickness range, as the fit is snug. Conical head round tube plugs install in seconds per tube end.
Every benefit of a standard tube plug, plus a decorative profile that transforms exposed 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 conical over flat. The tapered profile adds geometric interest to exposed tube ends. On retail fixtures, restaurant seating, hospitality furniture, and showroom displays, visible tube ends communicate design intention rather than incomplete assembly. Conical head round tube plugs turn functional hardware into a finishing detail. The smooth PE cone takes the same black finish as the rest of the plug body. These are the decorative round tube plugs that retail and hospitality environments demand.
Same sealed end as flat head plugs. The conical 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. Conical head round tube plugs protect the tube interior regardless of whether the tube end faces up, down, or sideways. Unlike leaving furniture hardware unprotected, sealed ends extend the life of the frame.
Same resonance reduction as flat head plugs. The PE body fills the tube opening and absorbs the vibration that hollow, open tubes amplify. In environments with many metal-framed chairs (restaurants, cafeterias, conference rooms), every sealed tube end reduces the cumulative metallic noise. Conical head round tube plugs provide the same acoustic benefit as flat head plugs with a design-forward visual upgrade.
The tapered cone concentrates floor contact at the center peak instead of distributing weight across a flat surface. For floor-contact legs, use flat head round tube plugs that spread load evenly. For floor contact with dedicated scratch protection, use pad slot round tube plugs with a PA6 pad insert. Conical head round tube plugs are designed for the visible tube ends that do not touch the floor.
All head styles share the same PE body and ribbed grip. The choice comes down to appearance, floor contact needs, and the specific visual effect you want on the exposed tube end. Here is how these plugs compare.
Flat head round tube plugs sit flush with the tube end. No protrusion, no visual accent. Conical head round tube plugs add a tapered peak that rises 6 mm above the tube edge. Choose flat for floor-contact legs and utilitarian applications. Choose conical for visible, decorative tube ends where the tapered profile adds design value.
Domed head round tube plugs have a rounded, bubble-like curve. Softer, more organic appearance. Conical head round tube plugs have a sharper, more angular geometric profile. The cone is more modern and architectural. The dome is more traditional and subtle. Domed heads are available in Ø 16 and Ø 26 mm. Conical is Ø 30 mm only.
Half-sphere head round tube plugs have a full hemisphere profile for maximum decorative effect. The half-sphere protrudes more than the cone and creates a bold, rounded endpoint. Conical head round tube plugs are more restrained. The taper is subtle enough to add interest without dominating. Half-sphere is available in from Ø 16 to Ø 30 mm.
Anti-slip TPE round tube plugs have a rubber head that grips the floor. Functional, not decorative. Conical head round tube plugs are decorative, not functional on floors. On the same piece of furniture, you might use anti-slip on the floor-contact legs and conical on the visible back uprights.
Pad slot round tube plugs have a recessed channel that accepts a PA6 pad for floor-specific scratch protection. Functional, flat-profile design. Conical head round tube plugs offer no pad slot and are not designed for floor contact. For the same piece of furniture, pad slot plugs handle the floor-contact legs while these plugs finish the visible, non-floor-contact ends.
Every variant uses the same internal ribbed PE body. The head determines appearance, floor contact capability, and specialized function.
Flush finish. Ø 10 to 80 mm. Best for floor contact and general use.
Tapered peak. Ø 30 mm. Decorative, non-floor-contact applications.
| Fits Tube (Ø) | Insert Depth (H) | Head Height (H1) | Tube Wall Thickness (T) |
|---|---|---|---|
| 30 mm (1.18″) | 14 mm (0.55″) | 20 mm (0.79″) | 3 to 4 mm (0.12″ to 0.16″) |
Tube wall thickness is a fit requirement, not a tolerance.
| Specification | Detail |
|---|---|
| Material | Polyethylene, a tough low-friction plastic |
| Sizes | 1 size |
| Diameter (Ø) | 30 mm (1.18″) |
| Height (H) | 14 mm (0.55″) |
| Head height (H1) | 20 mm (0.79″) |
| Tube wall thickness (T) | 3 to 4 mm (0.12″ to 0.16″) |
| Mounting | Pushes into the tube, held by ribs |
| Colors | Black |
| Floor compatibility | Hollow tube legs |
| Minimum order | Sold in a minimum of 4, then any quantity you need |
The conical head tapers upward from the tube edge to a raised center point, creating a subtle geometric peak. Flat head plugs sit flush with no protrusion. Domed heads have a rounded, bubble-like curve. The conical profile is sharper and more angular than a dome but less dramatic than a half-sphere. It adds visual interest without dominating the design. Conical head round tube plugs work best on visible, non-floor-contact tube ends.
Not ideal. The tapered profile concentrates floor contact at the center peak instead of distributing weight across a flat surface. For floor-contact legs, flat head round tube plugs distribute weight evenly. For floor-contact legs that also need scratch protection, use pad slot round tube plugs. Conical head round tube plugs are best for visible, non-floor-contact tube ends like chair backs and exposed frame tops.
Currently Ø 30 mm with 3 to 4 mm wall thickness in black only. For other diameters with a decorative finish, domed head plugs come in Ø 16 mm and Ø 26 mm, and half-sphere head plugs come in from Ø 16 mm to Ø 30 mm. For custom conical sizes or colors, contact us through Business Solutions.
It can. The raised cone protrudes approximately 6 mm above the tube edge. If furniture stacks by nesting tube ends, the cone may prevent flush stacking. Check that the protrusion does not interfere with your stacking geometry. For stackable furniture, flat head plugs are the better choice.
Yes. Same PE body with flexible internal ribs. Same press-fit installation: align, push, seat flush. Same chemical resistance, UV stability, and impact resistance. The only difference is the head profile. A rubber mallet is recommended for the 3 to 4 mm wall thickness as the fit is snug.
Conical Head Round 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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