Waterlöffel® is a versatile, interlocking, dry-stack concrete retaining system.

Waterlöffel® is a versatile, interlocking, dry-stack concrete retaining system purposely designed to combat:

  • Coastal dune erosion by wave action and wind
  • River bank erosion in water courses by seasonal storms
  • Erosion of stormwater outlets.

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Other uses for Waterlöffel® in construction:

  • Sea walls
  • Coastal promenades
  • Beach-access ramps
  • Bio-filters
  • Dam walls
  • River weirs
  • Marina waterways
  • Canals.

Environment – Waterlöffel® is eco-friendly and has passed all environmental impact studies linked to projects that have been completed to date.

Technical advice – Waterlöffel® walls are designintensive and as the manufacturers of this specialised product, we recommend that you use the services of a recognised geotechnical or hydraulic engineer to design your projects.

Note – This leaflet serves as a guideline only. For specific applications please make use of our free technical service.


Technical specifications

Mass per block – approx. 72 kg
Length 650mm
Width minus wings 450mm
Width with wings (100mm each) 650mm
Height 150mm
Number of blocks per m2
– Straight line 11
– Curved structures 12
Standard wall angle 65°


Wave tunnel testing carried out at the CSIR’s Division of Earth, Marine and Atmospheric Science and Technology – University of Stellenbosch