Two gym floors can share the same colour, thickness and price point and still be fundamentally different.
On the day they are installed, two rubber gym floors can look almost identical
Yet the materials beneath your feet and the way they have been manufactured, may be completely different. Over time, those differences can affect how the floor performs, how easily it can be maintained and how well it continues to look within the training space.
Whether you are specifying flooring for a commercial gym, health club, functional training facility or strength and conditioning space, understanding what a floor is made from gives you a much better basis for comparing your options
At IndigoFitness, we believe flooring should be specified around what each area needs to achieve, not simply how thick the tile is or how much it costs per square metre.
It is why we work with DuraTRAIN and PaviFLEX as their exclusive UK distributor. The two brands approach rubber flooring in very different ways, giving us access to different materials, constructions and performance characteristics rather than treating every rubber tile as an interchangeable product.
So, what is actually in your gym floor?
Recycled Rubber Crumb: Where Does It Come From?

A significant proportion of conventional black rubber gym flooring begins its life somewhere very different: on the road.
Most recycled rubber flooring is produced using material recovered from end-of-life vehicle tyres. The tyres are processed and shredded, steel and other components are removed, and the remaining rubber is granulated into crumb. These particles are then combined with a binder and compressed into gym flooring tiles, mats or rolls.
It gives an existing material a valuable second life while reducing demand for virgin raw materials. For operators and developments working towards broader sustainability objectives, that can be an important part of the specification.
There is also a practical reason recycled rubber is so widely used. A well-manufactured recycled rubber floor can deliver excellent impact absorption, acoustic performance and durability at a relatively economical cost. Beneath heavy free weights and strength equipment, it can be exactly the right material for the job.
But recycled rubber is not one standardised product.
The source and quality of the rubber crumb, the size and grading of its particles, the amount and type of binder used, and the way the material is compressed can all influence the finished floor.
Look closely at a conventional recycled rubber tile and you will usually see the individual particles within its surface. The way those particles have been selected and bonded matters. Which is why two 20mm tiles can look similar in a quotation but feel and behave very differently once installed.
What Does SBR Actually Mean?

SBR stands for Styrene-Butadiene Rubber, a synthetic rubber used extensively in vehicle tyres and a wide range of industrial applications.
Within the fitness flooring industry, the terms “SBR flooring” and “recycled rubber flooring” are sometimes used as though they mean exactly the same thing. The distinction is more nuanced.
Many recycled gym flooring products contain crumb recovered from tyres that include SBR rubber. That is where the close association comes from. However, SBR can also be produced as a virgin rubber compound, creating a fundamentally different type of flooring.
Recycled SBR and Virgin SBR: What Is the Difference?

With recycled rubber flooring, the rubber has already been manufactured, vulcanised and used for its original purpose, most commonly as part of a vehicle tyre. At the end of that life, it is broken into granules and bonded together to form a new flooring product.
This granulated construction can be extremely effective in areas where impact absorption, durability and acoustic performance are the priority.
Virgin SBR flooring follows a different manufacturing route. Rather than beginning with an existing rubber product, the manufacturer works with controlled raw materials to create an SBR compound specifically for the flooring being produced.
This gives the manufacturer greater control over properties such as density, consistency, formulation and surface finish.
It is the distinction behind PaviFLEX, the Spanish flooring manufacturer we distribute exclusively in the UK. Its virgin SBR products can provide a denser, more homogeneous surface than a conventional bonded rubber crumb tile.
That difference becomes particularly relevant in training spaces where appearance, consistency and ease of maintenance carry as much importance as impact protection.
Why Does a Compact Surface Matter?
A deadlift area does not ask the same things of its floor as a treadmill zone. A functional training area has different demands from a boutique studio. A premium health club may place greater emphasis on appearance and daily maintenance than a dedicated strength facility.
In an area exposed to repeated heavy impact, the structure of a high-quality recycled rubber tile can help absorb energy while contributing to noise and vibration control.
In another part of the gym, the priorities might be different.
The open texture of a conventional crumb rubber surface contains small spaces between its particles. With daily use, chalk, dust and general gym debris can settle within that texture. A dense, compact rubber floor has a smoother and less porous surface, which can make routine cleaning easier and create the more refined, consistent appearance expected in certain commercial fitness space.
Neither construction is automatically better.
A more useful question is whether the surface suits the way that particular part of the gym will be used, cleaned and experienced over time.
What About EPDM?
EPDM stands for Ethylene Propylene Diene Monomer. It is a synthetic rubber known for its resistance to UV exposure, weathering and changing environmental conditions.
It can also be produced in a wide range of colours. The coloured flecks commonly seen within black gym flooring are often made from EPDM granules, allowing a floor to introduce colour, visual interest or elements of a facility’s brand identity.
EPDM may also be used more extensively in flooring systems where colour stability, environmental resistance or design flexibility is particularly important.
Is EPDM better than SBR? Not necessarily. The materials have different characteristics and lend themselves to different applications:
- EPDM offers strong colour stability and resistance to weathering.
- Recycled SBR can provide excellent impact absorption, acoustic performance and value.
- Virgin SBR offers greater control over consistency, density and surface characteristics.
The right choice depends on where the floor will be installed and what it will be expected to withstand.
Recycled Does Not Mean Inferior

Discussions about premium flooring can sometimes imply that virgin rubber is good and recycled rubber is a compromise. We do not believe that is a useful or accurate way to approach specification.
In many training spaces, recycled rubber is the ideal solution.
A quality recycled rubber tile can provide the protection needed beneath free weights, racks and strength equipment. It can also form part of a multi-layer flooring system in which each layer performs a different role.
Within such a system, a recycled rubber base layer may provide thickness, shock absorption and acoustic isolation, while the upper surface provides the desired appearance, consistency and cleaning characteristics.
The presence of recycled material does not tell you whether a floor is suitable. Its source, quality, construction and intended application are far more revealing.
The better questions are:
- What was the flooring designed to do?
- What material has been used?
- Where did it come from?
- How was it manufactured?
Why Thickness Never Tells the Whole Story
Thickness is one of the first specifications buyers notice when comparing gym flooring.
If three quotations each include a 20mm rubber tile, it is natural to assume that they represent comparable products. In reality, thickness is only one part of the specification.
It does not explain the source or composition of the rubber. It does not tell you about density, binder content, manufacturing tolerances or surface finish. Nor does it reveal how consistently the floor will perform across a large commercial installation.
A 10mm compact virgin rubber floor and a 10mm recycled crumb tile may share the same measurement while being designed for very different environments.
That is why the IndigoFitness specification process begins with the space rather than the product.
What kind of training will take place there? What level of impact must the floor manage? What sits beneath or around the gym? How frequently will it be cleaned? What should it look like after several years of use?
Once those questions have been answered, we can recommend the most appropriate construction from the DuraTRAIN and PaviFLEX ranges.
The Difference Is Beneath the Surface
Rubber gym flooring is more sophisticated than it first appears.
Recycled SBR, virgin SBR and EPDM all offer valuable characteristics. The role of a good specification is not to declare one material universally better than another. It is to understand those differences and apply them intelligently across the training space.
That thinking sits behind our partnerships with DuraTRAIN and PaviFLEX.
Our objective is not simply to find a tile at the requested thickness or the lowest possible price. It is to create a flooring solution that performs properly within the training space for which it was designed.
Because the most revealing question is not simply, “How thick is the rubber?”
It is: “What is it made from and what has it been designed to do?”
In Part Two, we look beyond the initial specification to explore why two gym flooring quotations can differ so significantly and why the true difference may not become visible until years after installation.






