No — sand is actually the wrong base material for gravel grids like the GEOWEB geocell. Sand shifts under load and defeats the stabilization the grid is designed to provide.

Gravel grids work by confining infill laterally so it can't migrate or rut. For that to hold, the grid needs a compacted aggregate sub-base — crushed stone or compacted hardcore — topped with geotextile underlayment before the cells go down. Sand compacts poorly under vehicle loads and can pump out through the geotextile over time, causing the grid surface to sink unevenly. The GEOWEB geocell kit ships with geotextile underlayment included specifically because skipping that layer is the most common installation mistake that leads to grid migration after the first heavy rain.

  • GEOWEB geocell kit requires a compacted aggregate sub-base, not sand, before installation.
  • GEOWEB kit includes geotextile underlayment — a required layer between sub-base and geocell.
  • GEOWEB geocell supports loads up to 30,000 lbs when installed over a properly compacted base.
  • GEOWEB kit covers 153 square feet (9' × 17') per kit at 3-inch or 4-inch cell depth.