Case Study Brief

The Installation Challenge
The residential driveway and garden paths needed a stable gravel finish through changes in alignment and at landscape boundaries. Base levels, edge restraint and infill distribution needed to work together over the approximately 800 m² area.
BERA Gravel Fix® Pro was placed on the prepared base, trimmed to the surface geometry and filled with the specified gravel. Perimeter edging defined the installation and helped retain the infill.
Installation Sequence
Prepare the supporting base
Establish the required formation, compacted base and finished levels for the expected traffic and site drainage conditions.
Place and trim cellular panels
Lay BERA Gravel Fix® Pro panels on the prepared surface, maintain the integrated geotextile continuity and trim around boundaries and interfaces.
Install edging and gravel infill
Secure the perimeter edging and fill the cells with the specified gravel, distributing the infill evenly across the panels.
Compact, finish and inspect
Complete compaction and surface finishing; review edge restraint, gravel cover, levels and the drainage arrangement before handover.
Field Quality Assurance (QA/QC) Checklist
Quality checks recorded on this installation.
Products Used in Project
Products supplied and installed on this project.
Specification Conformity & Lab Verification
Key properties compared with the project specification.
| Property | Test Method | Specification Minimum | Delivered Value (Average) | Margin Above Spec |
|---|---|---|---|---|
| Empty panel vertical strength | Manufacturer brochure | Colour-dependent | 120 t/m² white; 95 t/m² grey/black | Manufacturer reference only |
| Installed panel vertical strength | Manufacturer brochure | Not a vehicle-load rating | >450 t/m²; depends on gravel | Manufacturer reference only |
| Vehicle-use foundation | Manufacturer general guide | Site design required | 150-250 mm crushed stone | Not a verified as-built measurement |
| Vehicle-use bedding | Manufacturer general guide | Site design required | 40-60 mm sharp sand or angular gravel | Not a verified as-built measurement |
| Gravel coverage above cells | Manufacturer general guide | Maintain coverage | 15-20 mm | Not a verified as-built measurement |
“I can finally park the bike without it sinking into loose stone, and it stays upright on the side-stand without digging in. The whole driveway drains within minutes after rain, and I haven't had to touch the gravel since it was laid.



