When you need rocks for a hardscape project but don’t want the weight, expanded polystyrene is an excellent choice
Expanded Polystyrene (EPS) GeofoamA Primer on Material Behavior
EPS Polystyrene Foam Block Styrofoam Geofoam Board - China EPS
GEOFOAM - Expanded Polystyrene Soil Substitute
Styrofoam for set designers Geofoam, Styrofoam, EPS
Landscaping, Geofoam, Styrofoam, EPS & Polystyrene
Create Rocks and Caves using EPS Foam
Styrofoam for set designers Geofoam, Styrofoam, EPS
Eps Geofoam Overview, PDF, Polystyrene
KINGSPAN Extruded XPS Geofoam, Styrofoam, EPS & Polystyrene