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What is a Double Radius Countertop Edge

Written by Castor Syro on July 22, 2023
Edited By Amanda Kaiser, Last Updated On January 01, 2024
Reviewed By Ross Kernez
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Finding the perfect edge for your kitchen or bathroom countertops can be a daunting task where there are a variety of options to choose from. While most edges are designed to flow well with most interior design schemes, they have the issue of feeling too bland or ordinary. That is why finding a special edge will help your countertops stand out among the dozens of others.

If you want a countertop edge that has a remarkable attitude and immediately recognizability, then the double radius countertop edge is the perfect choice. If that name does not sound familiar, then we will make you an expert by the time you have finished reading this article.


What is the Double Radius Countertop Edge

The double radius countertop edge describes the specific style where a countertop edge is shaped with a quarter rounded top and bottom section. The slight curse provides a larger radius than the eased edge, giving it more shape and design.

The double radius edge has a much more dramatic curve with one edge looking flat compared to the others. While it may look similar to a bullnose edge, a well-trained eye can spot the difference between them. The bullnose edge is directly rounded and smoothed while the double radius has two curves meeting in the middle.


Different Name, Same Thing

The double radius countertop edge is a niche industry term. Most companies and stone manufacturers will refer to the double radius countertop edge as a rounded t/b edge or the quarter round t/b edge. In this vernacular, t/b stands for top and bottom.


Companion Edging Style

The quarter round t/b edge is a fascinating edge that inspired another edge with similar design, but with enough changes to make it look expressive and new. This companion edge is known as the Bevel T/B edge.

While the quarter round t/b edge is smoother and elegant, the bevel t/b is more pronounced, sharper, and edgy (metaphorically and literally). It has a robust design with 45-degree angles to create a sharp and stylish edge. However, the pointed angles will mean that leaning against it could be less comfortable and may present a hazard if children are present.


What Type of Edge is the Quarter Round T/B

The quarter round t/b and the bevel t/b are both considered popular edges. Similar to all popular edging styles, they are easily affordable and possibly free to clients who purchase a stone countertop. During your purchase, ask an employee if they have a deal where a popular edge is free with your purchase. If so, this can save you some extra money on your order and permit you a wide selection of great finishing options.




Pros and Cons of Quarter Round T/B Edge

Like with all great things, there will always be some advantages and disadvantages that a prospective buyer must be aware of.

Pros of Quarter Round T/B Edge


Both the quarter round and bevel t/b edges are very affordable to anyone on a budget or just looking to have a nice edge to their stone countertops. Like we mentioned before, finding a company that will include these edges for free is a massive plus and a money saver as it can get costly depending on the stone and project being performed.

Thinner Design

While other countertop edging options will make your countertop look thicker and pronounced, the quarter round will do the reverse and slim your countertops down. This provides your stone countertops with a nice and sleek design which can work well for tighter kitchens or bathrooms.


Having a rounded edge is much safer for homes with young children as it reduces any chance of injury from bumps or falls. Rounded edges also reduce the risk of getting clothing caught on the edge or accidentally hitting a sharp corner to cause harm.

Protects Cabinets

Thanks to its well-formed shape, any spills or messes will easily fall over the side of the countertop edge rather than falling directly into the cabinets. This will save your cabinets from any spills, stains, or damage.


Cons of Quarter Round T/B Edge

Aesthetic Differences

While some people may prefer a thinner look to a countertop, many kitchen or interior design aficionados will tell you that thicker countertops have more impact and meaning. The difference between thick and thin countertops can vary depending on personal taste. This is not really a con, but more of a choice.

There really are not too many cons to the quarter round countertop edge. It has almost everything you would want for a countertop edge that the only issue boils down to aesthetic choice.



In summation, the quarter round t/b, or the double radius edge, or whatever you want to call it, is nothing short of perfection for a countertop. It has all the best attributes you need to protect yourself, your cabinets, and your floors from spills and messes

Why you can trust
When it comes time to get the job done, our fabrication and installation teams have the equipment and expertise it takes to get your project cut and delivered the right way, every time. We at are known for our incredibly quick turnaround, as we understand having countertops and other mainstays installed quickly and properly is important to our customers. We value your time, and our goal is to create the best work possible and have you enjoying it as possible.
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