Available for Nationwide Delivery or Click and Collect from our warehouse in Essex!

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  • Delivery between 2 to 4 days once your order has been placed.
  • Click & Collect available
  • 30 day returns policy
  • PLEASE NOTE: Timber orders require 2 people to assist offloading

SKU: PP40-Permeable Paver

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Technical Guides

Product Info:

PP40 permeable pavers are used where a permeable ground stabilisation solution is required for applications including driveways, car parks, overflow parking, car parking bays, cycle paths, pedestrian footpaths and wheelchair access paths. PP40 is our flagship paver in the PP range due to its strength and easy-to-install nature, making it a favourite whether you are installing a commercial car park or domestic driveway.

PP40 can be filled with either gravel or grass to provide a free-draining pavement surface that is SuDs source control compliant (Sustainable Urban Drainage System). PP40 porous paving provides over 350 tonnes of support per m².

The plastic paver's unique open cell structure is ideal for allowing grass roots to spread from cell to cell, allowing vertical and horizontal passage of water, drainage and the flow of nutrients. These benefits provide a great growing environment for grass with the ground stabilisation that the plastic porous paver gives to the grass's structure.

This structure also ensures that angular gravel is interlocked firmly so that it is retained in situ and won't move or be lost as a car wheel drives over. Please note that rounded pea shingle is not advised for this reason, but slightly angular gravel is recommended instead.

Each paver has the added benefit of a 25mm ground spike which helps resist lateral movement caused by repetitive traffic. PP40 porous pavers provide the grass or gravel with the structural integrity that is required to cope with stabilising the ground for pedestrians, cars, vans, trucks, lorries, coaches and buses.


  • Overflow grass car parks/permeable gravel car parks
  • Grass or gravel driveways
  • Coach and bus parks
  • Emergency fire lanes or fire engine access roads
  • Helipads or light aircraft taxiways
  • Pedestrian paths and garden paths
  • Cycle tracks and paths
  • Wheelchair/disabled access routes (DDA)
  • Golf buggy/trolley paths
  • SuDS source control schemes

Please note that with all installations of grass pavers, we strongly recommend that all areas should have sufficient drainage prior to the installation. Failure to ensure this may result in the product not performing as intended.

To see our full installation guide or other technical documents please click here to visit our technical area.


Technical Information:

  • Load-bearing capacity: 350 tonnes per m² (tested to UNI CEI EN ISO/ IEC 17025 Certification)  
  • Compatible vehicle types: Bicycles, wheelchairs, golf carts, cars, caravans, transit vans, 3.5T and 7.5T vans, fire engines, ambulances and 2-axle lorries
  • Suggested gravel size (for gravel finish): 5mm - 20mm angular gravel
  • Suggested soil type (for grass finish): Rootzone soil
  • Paver connection method: Edge clips
  • Material: Recycled polyethylene 
  • Weight: 1kg per grid
  • Integral ground spike size: 25mm

Design Guidelines:

We provide two complete design guidelines for grass or gravel finishes that can be found in our technical section or by following the links below.

To visit our PP40 paver with gravel infill design guidelines please click here to visit our technical area.

To visit our PP40 paver with grass infill design guidelines please click here to visit our technical area.

Installation Guides:

We provide two complete installation guides for grass or gravel finishes that can be found in our technical section or by following the links below.

To visit our PP40 paver with gravel infill install guide please click here to visit our technical area.

To visit our PP40 paver with grass infill install guide please click here to visit our technical area.

If you have any further questions that are not answered, please get in touch and our Ground Reinforcement experts will be happy to answer them.

Features & benefits:

  • Each square metre is made up of four 500mm x 500mm grids for a fast and easy install
  • Depth of 40mm allowing for the movement of larger vehicles compared to our lighter-grade pavers
  • Attractive paving solution which can provide a natural grass or gravel surface
  • Unique open cell structure allowing unrestricted healthy grass root growth or effectively retain gravel
  • The individual pavers interlock to form a single robust surface
  • 25mm ground spike to help resist lateral forces caused by vehicles
  • Manufactured from 100% recycled plastics which have been UV-stabilised
  • Paver profile that allows use in most weather conditions - they can expand on warmer days or in direct sunlight to stop lifting, and cope with cold temperatures where some other plastic pavers could become fragile
  • Plastic grass paving grids are chemically inert, non-toxic and rot-free
  • An eco-friendly and sustainable paving solution for trafficked areas
  • Designed to meet the demands laid down by local government regarding flood alleviation and SuDS (Sustainable Urban Drainage Systems) requirements


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