Green-Stay Ground Reinforcement Blocks

The revolutionary development in ground reinforcement


GRB is a new and revolutionary development in ground reinforcement. It is tough, flexible and easy to install making it the professional choice for a wide range of construction projects.

Manufactured from 100% recycled material GRB is the environmental and sustainable solution of choice to prevent ground erosion.  The honeycomb tiles provide an interlocking system that can be laid at ground surface level and then either filled with stone, gravel or earth or it can be seeded.

Use GRB to create the ultimate, hassle-free driveway - it prevents gravel migration and will keep your drive rut free resulting in a maintenance-free area with high aesthetic appeal - qualities that also make it perfect for green car parks and construction projects



Benefits That Matter

  • Quick and easy to install reducing on site costs (up to 100m2 per person per hour)
  • Lightweight
  • Proven connection system
  • Surface reinforcement with natural drainage
  • Minimal maintenance
  • Non-slip and crack proof
  • Weatherproof and environmentally friendly
  • Frost and UV resistant
  • Cut to size
  • Dimensionally stable
  • Prevents gravel migration
  • Sustainable
  • High strength (up to 250t/m²)
  • Up to 16 tonne axle load
  • Low transport and handling costs


  • Construction sites
  • Green car parking areas
  • Private lanes and access roads
    (including emergency access)
  • Pathways and drives
  • Golf courses
  • Landscapes
  • Equestrian and livestock facilities
  • Green roof and rooftop gardens
  • River and road embankment
  • Private airfields
  • Building site crossovers
  • Embankment Stabilisation
  • Residential Driveways
  • Emergency Access Routes
  • Helicopter Landing Pads
  • Cycle Routes
  • Equestrian Areas

 Installation Instructions

The following instructions are intended as a guide only, in general, the same preparation procedures used for traditional paving solutions as used in the construction of footpaths, driveways and access routes should be adopted. These guidelines assume that a sub-base is to be used beneath the paving system.

  1. The area to be protected should be marked out and excavated to the following depths depending upon the final use. Remember to add the depth of the GRB to the figures quoted if the GRB is to finish flush to the surface.


Typical Depth

Patios, Garden Paths

75 - 100mm

Driveways, Public Footpaths

100 - 150mm

Heavy Uses

150 - 225mm



  1. Once the full area is excavated the sub-base can be installed. Compact the full area to be as level as possible using either a vibrating plate or for larger areas a vibrating roller

  1. A thin 40mm layer of sharp sand/soil mix should be laid over the sub-base to level out any imperfections or hollows in the surface of the sub-base. If the area is to be grassed this mix will provide a suitable substrate for grass root survival and growth.

  1. Once the area is level the GRB can be interlocked and laid. The GRB is delivered in Any GRB's that need to be cut should be measured and cut before installation where possible leaving full, complete cells along the outer edge.

  1. The area can then be backfilled with the medium to be used. If using gravel we recommend the use of 10mm or less as this will ensure better filling of the cells. If the area is to be grassed, we recommend using a 70/30 root zone mixture; this will prevent the hard compaction of the cells which could be associated with just using topsoil which would limit grass growth. Initially fill to about 10mm below the top surface of each grid as this will protect the grass in its initial growing phase. The whole area can then be seeded and watered.

  1. An optional weed suppressant membrane can be used on top of the sub-base before applying the sharp sand as this will prevent weed growth but will allow for natural drainage of rain water to the ground below.

  1. Please note that as with all forms or paving products it is essential that the edges of the GRB are laid flush to avoid creating any tripping points.  This is the responsibility of the installer and Green-stay accepts no responsibility for injuries caused as a result of in-proper laying.


 Technical Specifications



Grid Area

330 x 330 x 40mm

Wall Thickness


Wall Depth




Number of tiles per m²


Load Capacity

Up to 250 tonnes/m²

Axle Weight

Up to 16 tonnes

m² per pallet

56 m²

Gross Weight per pallet

260 kg


100% Recycled UV Stable Polyolefin

Temperature Stability

-50 to +90°C

Chemical Resistance

Sodium Chloride (rocksalt), ammonia, acid rain, petroleum products, hydrocarbons

Estimated Installation Time

100m² per person per hour (depending upon ground preparation)

Applications and suggested usage

General purpose domestic parking filling with gravel or grass filling; overflow parking; ground stabilisation for footpaths, golf courses, parking areas on airstrips, banks and ditches, paddocks and farms, high wear gateways, green roofs.