VersiCell® GT® Aluminium Joist is developed for use with VersiJack® height-adjustable pedestals to create a substructure for raised paving system. It allows for an increased level of versatility and stability in the arrangement of floor pavers.

GT® Aluminium Joist allows easy accessibility to waterproofing membranes and concealed services without affecting the alignment of the floor caused by improper handling during routine maintenance. An array of engineered accessories allows virtually unlimited configurations to secure the flooring seamlessly, to achieve the desired design and allow full edge support for pavers.

The joists are typically laid in a chequered arrangement to support the pavers on pedestals. They are first laid parallel to each other and locked to the pedestals using Joist Adaptors. Additional joists are laid perpendicularly and secured to the parallel joists using Perpendicular Joist Joiners.


  • Landscape decks & planter boxes
  • Plaza decks, balconies & pool sides
  • Sports fields & golf courses


  • Interlocking cellular drainage modules
  • Compressive strength of at least 100 tonne/m2
  • Can accommodate both static and dynamic loads during and after installation