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
When a standard oval plug won’t bite hard enough in a thin 1 to 1.5 mm wall, it works loose. This one runs a longer body that reaches deeper into the tube, gripping more surface for a firmer hold. Same flat PE head as the standard oval plug. For 15 × 30 mm oval tubing. Black and white.
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 hold firmly in most wall thicknesses. But on thin-walled oval tubing (1 to 1.5 mm), the standard insertion depth sometimes does not provide enough grip. The plug seats, but it pulls out too easily under vibration, movement, or the routine push-and-pull of daily furniture use. Extended oval tube plugs solve this with a longer insertion body that reaches 6.5 to 7 mm deeper into the tube than the standard version. More surface contact. More grip. A plug that stays put in thin-walled tubing where the standard does not.
Same PE construction, same flat head, same oval cross-section as standard oval tube plugs. The only difference is the body length. Extended oval tube plugs are deep insertion oval plugs for 15 × 30 mm thin-walled oval tubing where standard depth is not enough. Black and white.
Not every 15 × 30 mm oval tube needs extended depth. The decision depends on wall thickness, how the furniture is used, and whether the standard plug holds firmly enough. Extended oval tube plugs are the answer when standard depth falls short.
Same three measurements as standard oval tube plugs: short axis (width), long axis (length), and wall thickness. Extended oval tube plugs require 15 mm short axis, 30 mm long axis, and 1 to 1.5 mm wall thickness. One additional consideration: the tube must have enough clear interior depth for the extended body to insert fully.
Use calipers across the short axis (15 mm) and long axis (30 mm) of the oval opening. Both must match. If your tube is not 15 × 30 mm, extended oval tube plugs will not fit.
Use calipers at the tube end. The wall must be between 1 and 1.5 mm. If the wall is thicker (1.5 to 2 mm or more), standard-depth oval tube plugs will likely hold firmly without extended depth.
The extended body inserts deeper than standard. Confirm the tube interior is clear (no welds, brackets, or bends) for at least 25 mm from the tube end to allow full insertion of the extended body.
Same press-fit installation as standard oval tube plugs, with more insertion resistance due to the longer body. A rubber mallet is recommended. Extended oval tube plugs require the same axis alignment: short axis to short axis, long axis to long axis.
The specific problem of plug retention in thin-walled oval tubing. The National Wood Flooring Association (NWFA) recommends protective measures on all furniture legs, and these plugs ensure those measures stay in place on thin-walled tubing where standard-depth plugs work loose.
The primary function. At 1 to 1.5 mm wall thickness, the tube interior provides limited surface area for the plug body to grip. Standard-depth plugs engage this limited surface and hold adequately under gentle use. But under daily commercial stress, vibration, stacking, or rough handling, the grip can fail. Extended oval tube plugs add 6.5 to 7 mm of additional body length, which means 6.5 to 7 mm more contact surface. Long body oval tube plugs that hold where standard depth does not.
Floor protection, tube sealing, noise dampening, and finished appearance. The extended body does not change any of these. The same flat PE head contacts the floor. The same sealed end keeps moisture and debris out. The same PE body absorbs vibration. The same clean head covers the tube opening. Unlike leaving furniture hardware unprotected, the plug stays in place and continues providing all four benefits because the extended body prevents the pull-out that would eliminate them.
Every time a standard plug falls out, someone has to find it, clean the tube end, and reinstall it. In a restaurant with 100 chairs, loose plugs are a recurring maintenance issue. Extended oval tube plugs reduce this by holding more securely. Fewer lost plugs. Fewer reinstallations. Less maintenance labor. Oval plugs for thin wall tubes that stay put in commercial environments.
A plug that falls out exposes a sharp metal tube end. On school furniture, waiting room seating, and any furniture handled by children or elderly users, a loose plug is a safety hazard. Extended oval tube plugs are harder to pull out accidentally. The deeper grip resists the tugging, bumping, and rough handling that dislodges standard-depth plugs in these environments. Extended depth tube plugs oval profiles need for safety-critical applications.
The flat PE head of extended oval tube plugs provides the same basic floor protection as standard oval tube plugs. PE is smoother and softer than bare metal, adequate for most surfaces without scratching. The oval head distributes weight across the full 15 × 30 mm area rather than concentrating it at a sharp metal edge.
On scratch-sensitive floors like engineered hardwood or luxury vinyl, apply a round self-adhesive furniture pad to the plug head for dedicated PA6 protection. On rough hard surfaces like textured tile or stamped concrete, furniture slides with ABS surfaces handle the texture better than PE. On carpet, the PE head provides adequate contact without additional treatment.
Same oval cross-section, different head styles, depths, and features. Choose the variant that matches your application.
15 × 30 mm. Deeper grip for thin walls. Black, white.
| Fits Tube (W) | Fits Tube (L) | Insert Depth (H) | Head Height (H1) | Tube Wall Thickness (T) |
|---|---|---|---|---|
| 15 mm (0.59″) | 30 mm (1.18″) | 13 mm (0.51″) | 5 mm (0.20″) | 1 mm (0.04″) |
Tube wall thickness is a fit requirement, not a tolerance.
| Specification | Detail |
|---|---|
| Material | Polyethylene, a tough low-friction plastic |
| Sizes | 1 size |
| Width (W) | 15 mm (0.59″) |
| Length (L) | 30 mm (1.18″) |
| Height (H) | 13 mm (0.51″) |
| Head height (H1) | 5 mm (0.20″) |
| Tube wall thickness (T) | 1 to 7 mm (0.04″ to 0.28″) |
| Mounting | Pushes into the tube, held by ribs |
| Colors | Black, White |
| Floor compatibility | Hollow tube legs |
| Minimum order | Sold in a minimum of 4, then any quantity you need |
Use extended when the standard 15 × 30 mm oval tube plug pulls out too easily or feels loose. Thin-walled tubes (1 to 1.5 mm) provide less engagement surface for the plug body. The extended body inserts deeper into the tube, engaging more surface area across a longer section for a firmer hold. If the standard plug holds firmly, you do not need extended.
Slightly. The longer body creates more friction during insertion because more surface area contacts the tube interior. You may need a rubber mallet where the standard-depth plug seats by hand. The extra insertion effort is the tradeoff for the stronger hold.
You can, but the extended body is designed for thin-walled tubes (1 to 1.5 mm) where standard depth does not hold. In thicker-walled tubes, standard-depth oval tube plugs already grip firmly. Extended depth in a thick-walled tube creates an extremely tight fit that is difficult to install and harder to remove.
Flat . The head sits flush with the tube end, the same profile as standard oval tube plugs. For a domed decorative finish on oval tubes, use domed oval tube plugs (rounded head) instead.
15 × 30 mm is the oval size where thin-walled tubing (1 to 1.5 mm) is most common and where standard-depth plugs are most likely to need the extra grip. Other oval sizes typically use thicker walls that provide adequate grip at standard depth. For custom extended sizes, contact Business Solutions.
Extended 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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