GEOdek® infiltration boxes store excess stormwater and release it afterwards. Made from Polypropylene, they exhibit exceptional strength and are resistant to all chemicals normally found below ground. GEOdek® can be used under sealed surfaces such as streets and parking lots. 7 standard types cover requirements for different types of loads.

GEOdek® Infiltration box

Natural stormwater infiltration needs uncovered surfaces. The growing number of sealed surfaces increases the risk of flooding and/or poor waste water treatment. One means to prevent those risks are technical infiltration systems like GEOdek® infiltration boxes. During the storm, they collect the water below the covered ground and release it later into the sewage drains.


GEOdek® boxes are available in 7 standard strength types. Their combination in single or multi-layer systems offers great flexibility to cover all requirements with regard to type of traffic load and earth coverage.

Our GEOdek® design program helps our customers to easily choose the appropriate type, allowing economically and ecologically-friendly realization of their projects.

TÜV certified

In addition to in-house tests, the quality and strength of the GEOdek® boxes is independently tested by external institutes like TÜV.


GEOdek® can as well be used for

  • Rainwater harvesting Rainwater harvesting systems with GEOdek® resemble attenuation systems. Tanks can be built without concrete or steel surrounds. An impermeable membrane around the fill structure prevents infiltration.
  • Infiltration of treated effluents For the infiltration of treated effluent from medium and small waste water treatment plants GEOdek® boxes can be used as well.


GEOdek® Type AGEOdek® Type BGEOdek® Type CGEOdek® Type DGEOdek® Type EGEOdek® Type FGEOdek® Type G
Volume weight [kg/m3]27354045506065
Nominal strength (long-term strength) in main load bearing direction, without holes* [kN/m2]38.573.688.4110.0134.6153.6168.7
Nominal strength (long-term strength) in secondary load-bearing direction, without holes* [kN/m2]14.023.731.840.550.169.083.7
Void ratio [%]>97>97>97>97>97>97>97
Color codingwhitegreenredyellowgoldbluesilver
Max. application temp [°C] *80808080808080

* The effects of creep behavior and the required safety values are considered in these data.
the total reduction factor is 2.25.

We offer innovative components and solutions for sustainable processes in heat exchange, water and wastewater treatment and mass transfer applications with respect for the environment. Our professional team works to increase productivity and cost effectiveness in your unique application. If you need a tailor made solution ... We are available for you!