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GT TreeParker SideUnit Datasheet.pdf
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TreeParker Unit Datasheet.pdf

TreeParker® Cell System

Product Code: 170UR7027S-Pro

The TreeParker® Cell System is a structural soil cell system that offers the most ideal circumstances for trees to thrive beneath the pavement.


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The TreeParker® Cell System is a structural soil cell system that offers the most ideal circumstances for trees to thrive beneath the pavement.

The TreeParker® Cell System is the latest generation of underground structural soil cell systems for trees in hard landscaping. TreeParker® Cell System has been developed from the experience gained by extensive trials, projects and discussions with landscape architects, clients, contractors and nurseries to provide the most cost-effective, fit-for-purpose solution to the problems associated with growing large trees in urban environments.

The TreeParker® system provides large volumes of non-compact high quality soil and maximises the usable space beneath the ground, providing unlimited expansion for unimpeded root growth, while supporting traffic loads at the same time. It is ideal for new trees in areas such as pavements, car parks, plazas, green roofs and even green walls.

TreeParker® offers the right solution for any challenge within the city

In addition to the key functions, such as withstanding heavy traffic loads, whilst maintaining pavement integrity and providing an unimpeded root growth, TreeParker® also promotes stormwater management within the system, dealing with rainwater runoff at source; the ideal SuDS solution.

Key elements taken into consideration for the development process were the need for simple design, easy installation, sustainability, integration of existing and new utilities, variable unit depth and free void space for soil infill.

TreeParker® Cell System Facts

  • Able to withstand loads of up to 550 kPa - Suitable for heavy traffic.
  • Utility friendly - The system can be adjusted on-site to accommodate the presence of new and existing utilities
  • Suitable for growing large trees - Smallest rooting opening is larger than Ø 30 cm and no need to make any concessions relating to the growth medium.
  • Every variable height up to 150 cm - The system's height can be adjusted to suit the maximum required height.
  • Combining root and water management - The system absorbs rainwater which is then filtered in a natural way.

TreeParker® Cell System Sizes Available

  • 40cm
  • 50cm
  • 60cm
  • 80cm
  • 100cm
  • 120cm
  • 150cm

TreeParker® Cell System Benefits

  • Variable system height, between 400mm and 1500mm.
  • Designed to support heavy traffic loads whilst maintaining pavement integrity.
  • Provides unhindered root growth for large species of trees.
  • Quick and cost-effective installation and easy to fill with soil.
  • Large spacing between the structure legs ensures unrestrained root-growth.
  • Made from 100% recyclable, long-lasting and inert plastics.
  • Modular system for design flexibility.
  • Tree Parker can be installed in curves down to a 5m radius without additional products.
  • Utility friendly, designed for easy utility maintenance and repair.
  • Combines stormwater management and root growth, up to 25% of the volume is available for water infiltration.
  • Up to 95% volume available for soil infill.
  • Withstands vertical and lateral loads.

Optimising the tree pit

The TreeParker® Cell System provides additional rooting space below pavements subjected to heavy traffic loads. The system does not impose any limitations on the growth medium to be used. The applied growth medium forms a continuous soil volume with natural water and air management. The soil within the system is in contact with the surrounding soil, the so-called side effect, which is important in extreme situations. TreeParker® is the most effective structural soil cell system. Up to 95 percent of the system is filled with the best available soil for the tree. This way, with a small volume, a large tree can be provided with sufficient water and nutrients.

Tested for the heaviest traffic loads

The TreeParker® Cell System consists of modular units that are strong enough to bear trucks. The forces are transferred by the road's foundation to the underlying foundation via the system. This way the system meets the civil engineering requirements. The open space in the system is filled up with soil that is suitable for the tree. Root growth is not limited due to heavy compaction. Because the system is not completely filled with soil, there is room for the soil to expand as the root mass becomes larger. With TreeParker® damage to pavement caused by roots is history.

Maximum load capacity

  • TreeParker® unit 40 cm up to 550 KN/m2.
  • TreeParker® unit 150cm up to 420 KN/m2.
  • Evenly distributed load.

Utility friendly

  • TreeParker® units must be able to be moved freely around existing utilities. With a connected matrix of units this is not possible. Units/cells are designed and tested as stand alone (not interconnected)

Maintenance and repair

  • Every unit can easily be opened and closed without damaging the integrity of the system, even when the units are connected.

No pavement lifting

  • Soil settlement and -expanding within the system will not have any effect on the pavement.

Adjustable height

  • To maximize soil volume or overcome (un)foreseen obstacles the system must be adjusted to every length preferable.

Chemically inert

  • All materials are chemically inert to natural soil conditions. 100 years guarantee.

Technical Support

Our Specification department at Green-tech Specifier will gladly assist you in making construction calculations and professionally drawn tree pit layouts. We provide full design and installation support for the entire project, from start to finish.