Unibloc Geofoam™

Unibloc Geofoam™ is a high performing fill material made from moulded polystyrene, designed and engineered specifically for civil and commercial building construction.

Its durability and exceptional strength to weight ratio, allow Unibloc Geofoam™ to absorb heavy structural loads and reduce underlying soil stresses.

Maximum control of your project's design

Manufactured using the world's most technologically advanced machinery, Unibloc Geofoam™ provides consistent strength and stability for various building applications:

  • Lightweight Roads
  • Weight Reduction for Utilities
  • Side Hills
  • Retaining Walls
  • Foundations
  • Bridge Abutments
  • Elevation Changes
  • Weight Reduction for Structures



Engineered to perform

  • Durable, strong and stable
  • Faster, more efficient installation
  • Contains no CFC, HCFC of HFC
  • Inert in all conditions
  • Resistant to water absorption 
  • Extremely lightweight to reduce lateral loads
  • Exceptional strength to weight ratio
  • Reduced construction times - more cost effective
  • Easily shaped on site or supplied prefabricated
  • Improved throughput
  • Resistant to termite infestation
  • Manufactured to International Standard ASTM D6817
  • Reliable material performance
  • Custom grades and sizes available


Unibloc Geofoam™ is produced in block form, available in various standard and custom sizes.

  • 1.2m width
  • 2.5m, 3m, 5m or 6m lengths
  • 75mm up to 1.2m thickness
  • Custom sizes to suit project requirements. 

Quality Assurance

Unibloc Geofoam™ is manufactured in Australia using the world's largest moulded polystyrene block machinery. Due to an absence of Australian standards for such materials, Unipod works closely with AFM Corporation in the United States, and complies with International Standard ASTM D6817, to deliver products to the Australian market that assure high-performing solutions for the construction industry. 

Download Unibloc Geofoam™ Brochure

Technical Data Sheets

Unibloc Geofoam™ EPS12
Unibloc Geofoam™ EPS15
Unibloc Geofoam™ EPS19
Unibloc Geofoam™ EPS22
Unibloc Geofoam™ EPS29
Unibloc Geofoam™ EPS39
Unibloc Geofoam™ EPS46