Delivering Value on Site: Reduced Sub-Base Depths and Faster Construction

As a contractor or engineer, your focus is on delivering a compliant project efficiently and cost-effectively. Constructing access routes or parking areas over a Root Protection Area (RPA) traditionally means complex, costly groundwork. Our innovative approach with Cellweb® TRP fundamentally changes that equation.

You can significantly reduce sub-base depths for your construction platform, often by as much as 50% compared to conventional methods. This material saving is substantial, cutting haulage costs and reducing the time spent on excavation and backfill.

A Proven Reduction in Practice

A classic example of this efficiency is the Oxford University Harcourt Arboretum car park project. The challenge was creating new parking within the RPA of mature trees. By choosing the Cellweb® TRP 150mm System filled with clean angular stone, the granular material depths were reduced while simultaneously creating a stable platform for vehicular traffic. The process requires no compaction of the infill, further accelerating installation.

Need to address significant changes in ground level within an RPA? The system is flexible. We have successfully designed solutions where layers of the 200mm depth system are stacked to build levels up to 2.4 metres.

The final installed platform provides a stable base for any porous surface option—from permeable blocks to loose gravel. Choosing Cellweb® TRP is a practical decision: superior long-term performance and aesthetics, delivered with immediate savings on time and materials.