EN 14904 explained: what a sports hall floor must comply with

EN 14904 is the European standard for indoor sports floors used for multiple sports. The standard exists because a sports floor has to do two conflicting things at once: absorb energy when an athlete lands, and return energy when a ball bounces. A floor that is only soft plays slowly and increases injury risk during pivoting movements. A floor that is only hard plays fast but absorbs nothing. The standard guards that balance.

What is tested? EN 14904 assesses a sports floor on a series of properties, four of which form the core. Shock absorption: how much landing energy the floor takes up, decisive for joint load. Vertical deformation: how far the floor yields under load. Ball bounce: how truly a ball returns compared to a rigid surface, decisive for ball sports. And friction: enough grip to push off, enough glide to pivot safely. The standard also sets requirements for wear resistance, gloss and material emissions.

Classes, not a grade. The standard divides floors into classes based on shock absorption and deformation. Which class is appropriate depends on use. A play hall for young children requires different properties than a competition hall for national-level volleyball. That is exactly how a specification should be read: not "the best class", but the right class for the sports function.

Certification in practice. A certificate tests the system, but the floor that ends up in the hall is only as good as its installation. That is why Herculan keeps the entire chain in-house: our sports flooring systems are developed and produced in our own factory in Meerkerk and installed by our own teams. The floor that is handed over is the floor that was certified. Certificates and product data sheets are available per system in our documentation.

To see what that looks like in practice, have a look at Leiden University Sports Centre, where multiple sports functions in one building required different floor build-ups, within the same standard.