Segmental block walls are dry stack in a running bond to create a freestanding retaining wall face. Our segmental block wall components are manufactured by a variety of local concrete product manufacturers.

As a gravity structure, segmental block walls are limited to very low heights due to the lack of mass of the blocks.

However, a segmental block wall, used in conjunction with geogrid soil reinforcement elements, can be constructed to significant heights — even in excess of 10 metres.

Generally, soil, as a construction material is strong in compression, and weak in tension. In a reinforced soil retaining structure, the soil block behind the face of the wall is reinforced in tension by the addition of a high-modulus polymer material, known as geogrid. The geogrids are usually sandwiched between the block courses of the wall face. Geogrid reinforced segmental block walls are particularly cost effective in a fill situation — where material is being imported for the purpose of increasing pad levels and buildable land area. The reinforced soil block is structurally engineered while the segmental blocks become the aesthetic facing of the wall.

Segmental block walls can be constructed near vertical (1H:40V) and can accommodate both convex and concave radii.


  • Magnumstone
  • Keystone 
  • Vertica
  • AB Vertical


This product is used in the following applications, click to view more: