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Geofoam · Design tool

EPS Lightweight Fill Design Checker

Size an EPS geofoam fill against load, settlement and buoyancy — in your browser, on our grade data. No sign-up.

Runs entirely in your browser — nothing is uploaded. Also available as a standalone page.

Grade data & provenance

The numbers behind the tool

PropertyValueStandardStatus
Density (grade span)12–30 kg/m³ASTM D6817Provisional
Thermal conductivity λ @10°C0.033–0.045 W/m·KProvisional
Compressive resistance @1% strain (design limit)15–100 kPaASTM D7180Provisional
Compressive strength @10% strain60–200 kPaASTM D6817Provisional

EPS geofoam grades follow the ASTM D6817 grade ladder. SA-specific values are Provisional pending our own type test; see our data promise.

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Technical resource

Who should we send this to?

We release technical documentation to named engineers and specifiers so we can support you properly on the project. One entry unlocks everything.

We will email you this document, and we may follow up about it. We will not add you to anything else unless you tick the box. We do not share or sell your details. How we handle your information.