FMI-EPS Geofoam Blocks

For nearly 30 years, FMI-EPS has been a trusted supplier of EPS Geofoam blocks for highway, embankment, and infrastructure projects. Our team works closely with engineers, contractors, and DOT agencies to provide lightweight fill solutions that save time, reduce costs, and improve long-term stability.

EPS Geofoam is a lightweight, engineered polystyrene block designed for geotechnical fill applications. At just 1/100th the weight of soil, Geofoam minimizes settlement, reduces lateral loads, and improves slope stability. Common applications include:

• Roadway embankments over soft ground.
   
• Slope stabilization and landslide repair.
   
• Retaining wall backfill to reduce lateral pressure.
   
• Bridge abutment fill to reduce vertical loads.
   
• Foundation wall backfill for reduced soil stress.
   
• Utility protection and insulation in cold climates.
   

• Eliminates costly preloading, surcharging, or staged construction.
   
• Reduces or eliminates the need for heavy earth-moving equipment.
   
• Faster transport and placement compared to soil or aggregate.
   

• Manufactured in our modern facility with strict QC standards.
   
• Meets ASTM D6817 requirements for EPS Geofoam.
   
• Provides uniform strength and predictable load transfer compared to alternative fills like foamed concrete, wood chips, or shredded tires.
   

• Densities range from 1.0 to 2.8 lb/ft³, providing compressive strengths suitable for highways, bridges, and building foundations.
   
• Reduces settlement and improves stability against slope and bearing failures.
   

• EPS Geofoam does not decay, decompose, or lose strength over time.
   
• Once installed, requires no maintenance for the life of the project.
   

• Contains no CFCs, HCFCs, dyes, or formaldehyde.
   
• 100% recyclable and safe for waste-to-energy or landfill disposal.
   
• Will not leach harmful substances into the soil or groundwater.
   

• Can be produced with a safe, non-polluting additive to repel termites and ants.
   
• Inert composition prevents mold, mildew, and fungus growth.
   

• In use for over 35 years in civil engineering projects worldwide.
   
• Approved by multiple State Departments of Transportation (DOTs) and the Federal Highway Administration (FHWA).
   
• Backed by FMI-EPS technical support to specify the right grade for your project.
   

• Delivered to your jobsite on schedule, ready to install.
   
• No compaction required and not affected by rain, snow, or moisture during placement.
   

• Excellent thermal insulation (98–99% air by volume).
   
• Low interface friction, comparable to soil-to-soil interaction.
   

FMI-EPS is a proven manufacturer of EPS Geofoam blocks with decades of experience supporting contractors and DOT projects. Our Geofoam solutions are cost-effective, predictable, and DOT-approved, making them the ideal lightweight fill material for modern infrastructure.

📞 Call us today at (208) 777-8485 for a project estimate or to speak with our technical team about your next Geofoam fill application.of units per day without sacrificing quality or efficiency.