What structural requirements apply to building a certified padel court?

Building a certified padel court is subject to structural requirements covering dimensions, steel structure, foundation, materials and lighting. These requirements are laid down in national building regulations and international sports standards, and are tested after completion by a recognised inspection body such as Kiwa ISA Sport. In this article we answer the most common questions about what is technically and structurally involved in building a padel court that meets all applicable standards.

Which standards determine whether a padel court is certified?

A padel court is certified when the structure, materials and installation meet the requirements of the Dutch Bouwbesluit (Building Decree) and the international sports standards of the World Padel Tour and the Federación Internacional de Pádel. After completion, an inspection by Kiwa ISA Sport is mandatory for use in official competitions. Kiwa ISA Sport is the recognised Dutch body for the assessment of sports surfaces and sports facilities.

Certification covers several components at once: the steel structure, the foundation, the artificial turf, the glass and the lighting are each assessed separately. All materials used must have been approved in the Netherlands by Kiwa ISA Sport. Anyone who unknowingly works with non-certified components risks the court not being approved for official use. This is a point that less experienced buyers regularly run into.

In addition to the sports-technical inspection, most outdoor courts also require an environmental permit. The municipality assesses structural calculations, an acoustic study and a lighting study as part of this. A padel court without a permit can be shut down or must be removed.

What are the mandatory dimensions and measurements of a padel court?

The official playing dimensions of a padel court are 20 by 10 metres. For assembly, at least 21 by 11 metres of free space is required. The recommended total space including run-off zones is 21 by 14 metres. The minimum clear height for a covered padel court is 6 metres, and the higher the better for playing quality.

The run-off zones at the short ends are not only a matter of playing comfort. They are also relevant to player safety and are taken into account when the facility is assessed. For indoor padel courts in existing halls, the available height is often a limiting factor. A hall with less than 6 metres of clear height is technically not suitable for professional use.

Deviations from the standard dimensions are possible in some cases, but always require a structural recalculation. A court that is smaller or narrower than the standard does not meet the certification requirements for official competitions.

What requirements apply to the steel structure of a padel court?

The steel structure of a padel court must meet the structural requirements of the Bouwbesluit, including calculations for wind load, stability and load-bearing capacity. The structure is calculated per location on the basis of the wind zone, the surrounding buildings and any extra load from sound-absorbing panels. A standard structure without a site-specific calculation does not meet the applicable standards.

Stricter requirements apply to outdoor courts than to indoor courts. The steel structure must withstand the weather, which means heavier steel is used and the structure is hot-dip galvanised to protect against rust. The connections, posts and columns are dimensioned to the wind load that applies at the specific location.

An important point of attention is that the structural calculations must be submitted with the permit application. Without approved structural calculations, the municipality will not grant an environmental permit. This also applies to indoor courts where structural modifications are made to the building.

What foundation requirements apply to a padel court?

The foundation of a padel court must be stable, level and durable, and must be able to absorb the forces from the steel structure and the wind load. The exact foundation build-up is determined on the basis of cone penetration tests of the soil. Without test data, it is not possible to give responsible foundation advice. All foundation materials must have been approved by Kiwa ISA Sport.

There are three common foundation types for padel courts, each with its own technical properties:

• Drainage concrete is a water-permeable type of concrete in which rainwater is drained directly through the foundation into the ground. It is suitable for outdoor courts and has an average lifespan of 25 to 40 years with correct use.
• Supersub is a foundation solution based on foam concrete. It is light, self-levelling and shock-absorbing, and is used for both new builds and conversion projects. The thickness varies from around 10 cm for renovation to around 15 cm for new builds.
• ZOAB asphalt (porous asphalt) is a porous type of asphalt that lets water through and is a good option in certain situations, particularly at locations with specific ground conditions.

For outdoor courts, the foundation is almost always combined with a ring foundation with steel reinforcement, to properly absorb the forces from the steel structure and the wind load. Foundation costs depend heavily on the location and are a significant cost factor for outdoor courts.

What are the requirements for glass, artificial turf and lighting on a padel court?

The glass on a padel court must meet the safety standards for laminated or toughened glass, matched to the structural load and the intensity of play. The artificial turf must be padel-specific, with the right fibre length, infill and ball-bounce characteristics in line with sports standards. The LED lighting must provide uniform illuminance that meets the standards for sports lighting, without disturbing shadows or glare on the playing area.

For the artificial turf, the sand bed and the lines are part of the overall construction and are also included in the inspection. A court with artificial turf that has not been approved by Kiwa ISA Sport does not meet the certification requirements. The same applies to the glass: non-certified glass panels can lead to rejection at the final inspection.

The LED lighting also plays a role in the permit application. For outdoor courts, a lighting study is mandatory as part of the environmental permit. This study demonstrates that the lighting does not cause nuisance to residents. The results of the lighting study are taken into account in the municipality’s assessment. You can read more about the cost structure of a complete court in our overview of the cost of an indoor padel court.

Are there additional structural requirements for padel courts with sound-absorbing panels?

Yes, when sound-absorbing panels are fitted to the outside of the cage structure, the steel structure must be structurally reinforced. The panels reduce the wind permeability of the cage, which increases the wind load on the structure. This requires a new structural calculation per location, using heavier posts, additional columns or adapted connections.

This is a technical point that is regularly underestimated in practice. A standard steel structure that meets the structural standards without panels does not automatically meet those same standards once panels are fitted. Reinforcement is not optional, but an obligation in the interests of safety and service life.

Sound-absorbing panels can be used on both new and existing courts. In both cases the structure must be recalculated before the panels are fitted. For existing courts, this calls for an inspection of the current structure and an assessment of whether reinforcement is possible without replacing the entire steel structure.

Who is responsible for complying with the structural requirements during construction?

Responsibility for complying with the structural requirements lies primarily with the contractor building the padel court. The contractor is obliged to work with certified materials, approved structural calculations and an installation that meets the applicable standards. The client is responsible for applying for the necessary permits, unless this has been transferred to the contractor by contract.

In practice, this means that as a client you need to know exactly what your contractor is supplying and where the responsibilities lie. If you work with several parties, it quickly becomes unclear who is responsible when a component does not meet the standards. This risk is smaller when a single party handles the entire process, from foundation to handover.

After completion, an inspection by Kiwa ISA Sport is mandatory for use in official competitions. The inspection tests whether the court as a whole meets the applicable sports standards. Any shortcomings must be rectified before the court is taken into use for competitive play.

How I-Padel helps with building a certified padel court

We guide the entire process from design to handover, so that the court meets all applicable structural requirements and is ready for inspection by Kiwa ISA Sport. Because we produce the steel structure entirely ourselves, we can structurally calculate every court to the specific requirements of the location. That also applies to more complex situations, such as courts with sound-absorbing panels or locations with a deviating wind load.

What we arrange for you in concrete terms:

• Structural calculation per location, including wind load and foundation advice based on cone penetration tests.
• Supply and installation of all certified components: steel structure, glass, artificial turf and LED lighting.
• All common foundation types: drainage concrete, Supersub and ZOAB asphalt, matched to ground conditions and use.
• Integration of sound-absorbing panels, including structural recalculation.
• Guidance through the permit process, including coordination of the acoustic and lighting studies.
• One point of contact, one responsibility and a 15-year warranty on the steel structure.

Want to know what is needed at your location to build a certified padel court? Get in touch for an initial exploration and we will think along with you, no obligation.

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