Koonmi Tempered Glass Chair Mat, 30 x 48 in

The Koonmi glass chair mat is a clear, rectangular tempered-glass surface listed at 30 by 48 inches for use beneath an office chair. Its hard surface is intended to protect carpet or hard flooring while allowing chair wheels to roll across it.

At a glance

Clear glass leaves the floor visible beneath the mat.
The listing describes round, polished edges and a scratch-resistant surface.
The stated dimensions are 48 inches long by 30 inches wide, with a listed thickness of 0.16 inches.
The listing claims a maximum weight capacity of 1,200 pounds. This is a manufacturer claim, not an independently verified measurement.

Price

$57.99Save 15%

Reference price: ~~$68.39~~

Price checked: Nov 14, 2026

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Often bought together

[Tempered Glass] 46" x 55" Glass Office Chair Mat for Carpet | 1/5" Thick Crystal Clear Heavy Duty Hard Floor Mat with Round

$154.99

Koonmi Tempered Glass Chair Mat 36"x48" - Premium Office Chair Mat for Hardwood Floors & Low-Pile Carpet with 4 Non-Slip Pads

$129.99

Pros and cons

Pros

Transparent glass offers floor protection without an opaque mat covering the floor's appearance.
A rigid glass surface provides a smooth rolling area for chair wheels, according to the listing.
The listing says the surface can be wiped clean.

Cons

The 30-by-48-inch footprint may not cover a large chair movement area, so compare it with your available floor space before buying.

Technical specifications

9 specifications

Identity
Brand	Koonmi
Model	chair mat

Dimensions and installation
Form factor	Rectangular
Dimensions listed	48"L x 30"W x 0.16"Th
Size	30"x48"
Recommended surface	Carpet/Hard Floor

Materials and protection
Material listed	Tempered Glass
Color	Transparent
Maximum weight capacity	1200 pounds

What to know before buying

Listing details to confirm

The title identifies a 30"x48" mat, while the dimensions field gives 48"L x 30"W x 0.16"Th, which is consistent when read as length by width. The listing's 1,200-pound capacity, scratch resistance, floor-protection claims and lifetime warranty are manufacturer statements, not independently confirmed. Customer feedback is mixed about whether the mat stays in place over time, so consider the stability of your flooring and setup.

Who is it for?

A good fit for

Desk users who want a clear, rigid chair surface over carpet or hard flooring.
Buyers who prefer a wipe-clean surface and want the floor to remain visible.

Less suited to

People who need a larger rolling area than 30 by 48 inches.
Buyers who require confirmed anti-slip performance or independently verified load and durability ratings.

Koonmi Tempered Glass Chair Mat, 30 x 48 in · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.7 / 5 · 346 ratings

5 stars87%87%
4 stars6%6%
3 stars4%4%
2 stars1%1%
1 star2%2%

Customer feedback describes the mat as visually appealing and sturdy, and reports smooth, quiet chair movement, including on thick carpet. Some customers also regard it as worthwhile for the money. Reports differ on stability, with some saying it stays put and others noting that it slides over time. That variation matters when choosing a rigid 30-by-48-inch surface, especially if the mat must remain fixed during frequent chair movement.