Stone Strong® retaining wall systems provide engineers, contractors, and asset owners with a proven solution for delivering robust, durable, and cost-effective retaining structures. Combining the strength of large-scale precast concrete blocks with flexible design options, Stone Strong can be configured as either a gravity retaining wall or a mechanically stabilised earth (MSE) wall, allowing each project to be tailored to site conditions, loading requirements, and construction objectives.

From transport infrastructure and commercial developments to industrial facilities and residential subdivisions, Stone Strong retaining walls deliver exceptional structural performance while simplifying construction and reducing project timelines.

Gravity Retaining Walls

Stone Strong was originally developed as a gravity retaining wall system, utilising the mass of large precast concrete blocks to resist earth pressures without the need for reinforcement.

The system is based around the core 24SF (Square Foot) block, providing a face area of approximately 2.24m² per unit. Standard block widths of 1.1m, 1.6m, and 2.2m allow designs to be optimised for varying wall heights and loading conditions.

Design Flexibility

Stone Strong gravity walls can be constructed in a wide range of configurations, including:

• Straight retaining walls
• Curved wall alignments
• Stepped wall profiles
• Tiered retaining structures
• 45° and 90° corners
• End walls and transitions
• Architectural and engineered applications

This versatility allows designers to accommodate challenging site geometries while maintaining a consistent and attractive finished appearance.

Key Benefits

• Rapid installation with large precast units
• Reduced excavation and construction time
• Minimal site disruption
• Long-term durability and low maintenance
• Proven performance under significant loading conditions
• Ideal for transport, commercial, industrial, and land development projects

Hybrid Retaining Wall Solutions

One of the unique advantages of Stone Strong is the ability to combine gravity and MSE wall systems within a single project.

This hybrid approach allows engineers to optimise wall design by matching the retaining solution to the specific demands of different site areas.

Typical applications include:

• MSE walls for higher retained heights
• MSE walls supporting significant surcharge loads
• MSE walls adjacent to structures or transport corridors
• Gravity walls in lower-height sections
• Gravity walls used at the upper levels of MSE structures where reinforcement is no longer required

By combining both approaches, projects can achieve the most economical and practical solution while maintaining a consistent wall appearance throughout the development.