For a retaining wall, structural void fill systems occupy the space between the wall and retained ground, forming part of the wall assembly. Their role is to fill a defined void; the system should not be assumed to provide structural support unless that function is specified. Retaining Wall Straight 400mm H by Advance Landscape Systems is one example listed here.

Structural Void Fill Systems

The Structural Void Fill Systems category includes straight and curved units with stated heights of 400 mm and 600 mm. Retaining Wall Curved 600 mm H by Advance Landscape Systems is an example of a curved profile. Use the product’s technical information on a New Zealand project to confirm its intended application and installation requirements, then coordinate those details with the wall specification before construction.

Can void fill units be treated as retaining wall support?

No, not unless the product information and wall design explicitly assign them a structural role. Have the wall designer confirm the load path for the complete assembly.

Does “400mm H” or “600 mm H” set the finished wall height?

The product name gives a stated unit height, not necessarily the height of the completed wall. Check the product dimensions against the wall section and finished ground levels.

What should be settled before installation?

Agree the installation sequence and placement access with the installer while the space behind the wall is still accessible. Record any required drainage provisions separately in the wall specification.