"...saving water need not cost the earth"

Invisible Structures offers two porous paving solutions: Gravelpave2 and Grasspave2. Both provide an environmentally friendly and attractive alternative to concrete or bitumen and feature quick, low-cost installation.


Gravelpave2 is an interlocking cell structure made of 100% recycled plastic. When installed on a specifically engineered porous base Gravelpave2 maintains the integrity of a gravel surface catering for frequent and heavy traffic.

A filter fabric bonded to the underside of the structure retains all aggregate, is fast draining, and deters the establishment of large weeds.

Applications include:

  • All Parking Aisles and Bays
  • Automobile and Truck Storage Yards
  • All Service and Access Drives
  • Loading Dock Areas
  • Trails for Multiple Uses
  • Boat Ramps
  • Outdoor Bulk Storage Areas
  • Infiltration Basins
  • High-Use Pedestrian Areas


The system comprises a specifically engineered porous base supporting a fully interlocked flexible matrix. This maintains soil aeration by preventing deadly compaction. Surface integrity is maintained by preventing lateral migration of root zone medium.

Grasspave2 enables the grass root system to remain intact and functional, allowing continuous, healthy turf under traffic.

Applications include:

  • Fire lanes
  • Overflow, stadium and event parking
  • Grass driveways
  • Utility and emergency access
  • On-street parking - grass shoulders
  • Pedestrian walkways
  • Infiltration basin reinforcement
  • Golf cart paths
  • Erosion control
  • Helicopter landing pads
  • Airplane transport areas