Sport Court UK build precision concrete BASKETBALL COURT BASES

To ensure you get the best out of your PowerGame™ basketball court, the tiles must be laid on a flat concrete surface. Minimum flatness tolerances should be within 3.2mm in every 3m radius. Courts within this limit take full advantage of PowerGame™’s unrivalled safety benefits. Flawed sub-bases transfer faults into the court surface with deadspots disrupting ball response and stability underfoot.

Sport Court UK court construction crews are able to prepare incredibly level concrete court bases well within the 3.2mm flatness tolerance. Our professional, diligent groundworkers offer complete court building services from initial site survey, spoil removal, concrete pour and surface preparation ready for your PowerGame™ sport court.

If you have a preferred contractor able to match our precision slabs, our design team can provide accurate technical drawings and concrete specifications to ensure your slab matches our exacting standards. 

Site preparation and access

Our crews may need to access sites with heavy-duty construction equipment. Creating access (and in some cases repairing it when finished) may add to costs. Generally, fencing can be removed and replaced easily and without damage. Stone walls require more time and energy.

Let’s explore additional factors and see how they affect residential game court construction costs.

Removal of spoil material or 'muck away'

Often overlooked when planning groundworks, ‘muck away’ can add significant costs to residential court projects. Our construction crews will ensure all spoil is removed from your home quickly and responsibly.

METAL formwork

Slabs can only be as level as the formwork they’re shaped in. To achieve high accuracy, our crews use only metal formwork. Setting out levels will always be supervised by an experienced, senior team member.


The following concrete recommendations are for informational purposes only. Sport Court UK is not responsible for concrete design specifications unless we have been directly involved in this aspect of the court project. Specific requirements for concrete design and installation should be confirmed by a local engineer and/or qualified contractor.

  • Minimum thickness of 100mm concrete slab with a 150x150mm turndown at the court perimeter. Continuous 12mm rebar may be used at the perimeter where slab will abut walls or other pavements.
  • Reinforcement Options include: Welded Wire Fabric placed at 1/3 the depth of the concrete or any rebar mesh (min. 50mm concrete cover is necessary when adding rebar mesh); 12mm continuous rebar at the perimeter of slab.
  • Concrete contractors should aim to achieve a 3,000 PSI at 28 days
  • The Slab shall have a medium broom finish
  • Slope: 0.5% Min. / 1% Max or 25mm in 5m, all in one plane.
  • 6mm tooled radius edge or chamfered edge
  • Flatness tolerance of ± 3.2mm in any 3m radius of the court area. Floor Flatness and Floor Levelness (FF and FL) numbers are not recognised.  
  • High spots shall be ground level and low spots filled with concrete levelling compound.


  • Control joints may be either tooled in “wet” concrete or saw cut within 18 hours of placement
  • Expansion joints should be used to separate new concrete whenever it abuts new or existing concrete from curbs, walls or any other rigid pavements/structures
  • Expansion joints shall be filled with pre-moulded joint filler
  • All joints should be sealed with sealant resistant to both oil and fuel
  • Concrete slab may be crowned at the court centre line and sloping down at 0.5% towards the edge of the slab.
Here in the UK, due to such a wide variety of unpredictable weather conditions, Sport Court UK install Sport Court® Powergame tiles on concrete slabs or consistently flat garden slabbed areas and driveways to ensure long-term, trouble-free performance. In many cases sub-base preparation is minimal, but it is still important to consider the following issues.


If an existing subsurface does not exist, we typically recommend installing a concrete slab (Minimum 100mm slab thickness) for most game courts due to its performance, durability and longevity. Each concrete slab should be laid upon minimum 50mm of compacted scalpings. Scalpings are used as a fill or sub base, the material in scalping can vary area to area and by manufacturer.


A properly built concrete slab can last forever. To guarantee the performance benefits of Sport Court® Powergame™ it is critical to ensure your concrete slab meets a flatness tolerance of ± 3.2mm in any 3m radius of the court area.


PowerGame tiles can be laid over structural cracks no wider than 12mm. Sharp cracks should be faceted or rounded so that ball bounce is consistent and the tiles don’t catch when the floor expands and contracts.


Court tiles expand and contract slightly with temperature changes so we advise specifying a court that is 50-100mm shorter in width and length than the base dimensions you have. We also recommend trimming the tiles at least 12mm from any obstructions like the basketball goal post, fencing posts, etc.


Complete the court construction enquiry form and we’ll be in touch to discuss your court building project. Next step is to arrange a site visit with our groundworks experts before the design team begin the planning. Alternatively, call us on 01962 809 206 or email info@sportcourt.uk The ball’s in your court..