Terraforce or Lockstone is a modular, dry laid, interlocking, hollow, concrete block walling system which can be constructed to form complex horizontal and vertical curves.
The blocks can be filled with topsoil, gravel or concrete, and can be built with either the curved or the split face showing, depending on the required appearance and application. A variety of block colours is available.
When filled with soil and planted with ground cover shrubs, the Lockstone system provides a naturally ‘green' and aesthetically pleasing solution to slope retention problems.