PENTABLOCK® is a unique interlocking vertical construction block system with a Natural stone option. These blocks feature a patented design with a simple rebate joint and mortarless quick and easy construction process. PENTABLOCK® creates pure vertical walling used for all applications in the construction industry including retaining walls, feature walls, domestic and commercial construction, swimming pools, fencing, and more. PENTABLOCK® will soon take over from the traditional construction methods as its quicker, stronger and looks amazing with a range of natural stone options to choose from.

This innovative patented system is the output of years of research and design to create a revolutionary Dry Stack walling system. The PENTABLOCK® system has many advantages over conventional block work, and other Dry Stack products, tilt panels and other walling systems.

One of the biggest advantages of the PENTABLOCK® system is the productivity gains that are delivered to builders, installers and other trades with the addition of increased strength and capacity PENTABLOCK® is the new way to construct.


  • Dry Stack system
  • Rapid construction
  • Construction time up to 75% faster than traditional methods
  • Up to 4 hour fire rating
  • Cyclone rated
  • Unique interlocking design
  • Significantly reduces mess on site
  • Comes in many color and stone options
  • No tanking or waterproofing required in some applications
  • 25% stronger than traditional masonry construction
  • Easy to render with no moisture lines from mortar joints

The PENTABLOCK® Walling System was developed in consultation with construction stakeholders with an aim of reducing labor time and material costs required for concrete and masonry walling .

PENTABLOCK® Walling System is designed in accordance with AS3600 Concrete Structures and AS3700 Masonry Structures and is suitable for all forms of construction work in the commercial, civil, industrial and residential construction industries.


PENTABLOCK® walling units feature a concrete interlocking rebate system. When the units are stacked on top of each other they will interlock forming a single structure. This system removes the need for mortar. On completion of stacking the blocks, the cavity is filled with concrete and steel reinforcement creating a solid concrete structure. Pentablock significantly reduces materials needed onsite and delivers significant time savings for installers and contractors.


The PENTABLOCK® Walling System is suitable for many residential, commercial and industrial applications such as:

  • Interior feature walls
  • Steps and stairs
  • Pillars & Column’s
  • Landscape features
  • Underground tanks
  • Letterboxes
  • Fireplaces
  • And many more uses
  • Retaining walls
  • Basement and exterior walls
  • High strength load bearing walls
  • Construction where high strength cyclone ratings are required
  • Multi story commercial and residential construction
  • Common dividing walls and boundary walls
  • Swimming pool construction
  • Fencing
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