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GT PP25 25mm Ground Reinforcement Grid is a permeable plastic ground reinforcement grid designed for domestic and lightweight trafficking applications where a stable, durable surface is required without using conventional impermeable paving. Supplied as interlocking 500mm x 500mm x 25mm grids, PP25 is lightweight, easy to handle and straightforward to install, with four individual grids covering one square metre. Its open-cell structure provides a versatile foundation that can be filled with rootzone soil and seeded for a natural grass finish, or filled with suitable angular gravel to create a durable and attractive decorative surface.
Manufactured using carefully selected recycled plastic, PP25 provides an economical ground reinforcement solution for domestic driveways, car parking bays, pedestrian pathways, wheelchair access routes, cycle paths, caravan parking, verge parking and shed bases. The interlocking hook-and-cap connection system helps create a stable and robust surface, while the permeable cellular design allows water to drain through the grid. When used with grass, the open cells provide space for rootzone soil and grass growth; when filled with gravel, the cells help contain the aggregate and reduce movement across the finished surface.
PP25 has a stated load-bearing capacity of up to 150 tonnes per m² when correctly installed and subject to suitable ground conditions, making it a versatile option for a wide range of domestic ground reinforcement projects. The UV-stabilised grid is compatible with bicycles, wheelchairs, golf carts, cars and caravans. For gravel installations, 5–15mm angular gravel is recommended, while rootzone soil can be used to create a reinforced grass surface. With No-Dig, Temporary and Full installation approaches available, PP25 offers a flexible solution for homeowners, gardeners, landscapers and groundworkers looking to stabilise grass or gravel surfaces.
GT PP25 25mm Ground Reinforcement Grid is suitable for a wide range of domestic landscaping and ground stabilisation applications, including:
PP25 can be used to create a reinforced grass surface by filling the open cells with suitable rootzone soil and seeding with an appropriate grass seed. The cellular grid provides support beneath the surface while allowing the grass to grow through the open cells.
A grass-filled PP25 installation is suitable where a stable surface is required while retaining a natural green appearance. It can be used for domestic parking, grass access areas and landscaping projects where conventional paving is not desirable.
PP25 can also be filled with suitable gravel to create a stable reinforced gravel surface. For best results, 5–15mm angular gravel is recommended.
The cellular structure helps retain the gravel within individual cells, helping to reduce aggregate migration and movement. This can provide a neater and more stable finish than loose gravel alone and is particularly useful for domestic gravel driveways, parking areas, pathways and access routes.
The open-cell design of PP25 creates a permeable reinforced surface, allowing water to pass through the grid rather than relying on an impermeable paved surface. This makes the system useful for landscaping and ground reinforcement projects where maintaining surface drainage is an important consideration.
The exact drainage performance will depend on the underlying ground conditions, installation method and chosen infill material.
PP25 can be installed using different methods depending on the intended application, ground conditions and anticipated traffic. Available installation approaches include No-Dig, Temporary and Full installation.
The individual 500mm x 500mm grids interlock using the integrated hook-and-cap connection system. Four grids are required to cover one square metre. Once connected, the grid can be filled with either suitable rootzone soil for a grass finish or 5–15mm angular gravel for a decorative gravel surface.
Correct installation and suitable ground preparation are essential to achieving the expected performance of the system. Load-bearing capacity is dependent on factors including the underlying ground conditions, installation method, infill material and expected traffic.
For projects where loading requirements are particularly important, Green-tech's technical team should be consulted before purchase to ensure the PP25 system is appropriate for the intended application.
*Stated load-bearing capacity of up to 150 tonnes/m² is dependent on correct installation and suitable ground conditions.
PP25 is supplied as individual interlocking grids:
| Specification | Details |
|---|---|
| Product | GT PP25 25mm Ground Reinforcement Grid |
| Product Type | Permeable plastic ground reinforcement grid |
| Material | Recycled plastic |
| Colour | Black |
| Grid Dimensions | 500mm x 500mm x 25mm |
| Grid Area | 0.25m² per piece |
| Grids per m² | 4 |
| Weight per Grid | 0.52kg |
| Weight per m² | 2.08kg ±2% |
| Connection System | Hook and cap |
| UV Stabilised | Yes |
| Load-Bearing Capacity | Up to 150 tonnes/m²* |
| Suggested Gravel | 5–15mm angular gravel |
| Suggested Grass Fill | Rootzone soil |
| Finish Options | Grass or gravel |
| Compatible Vehicles | Bicycles, wheelchairs, golf carts, cars and caravans |
| Installation Options | No-Dig, Temporary and Full |
| Surface Type | Permeable |
| Sold By | m² |
