Sheet Pile Infills

Cordek Sheet Pile Infills are designed as a quick, economical and lightweight solution to infilling the open pans in an exposed sheet pile wall. Manufactured to order from Filcor (Expanded Polystyrene), they are available in a range of profiles and densities to suit customer requirements.


  • Aids the extraction of the sheet piles following construction of the concrete retaining wall
  • Provides a flat profile for the installation of construction membranes or an in-situ concrete wall
  • Removes the need for backfilling in a confined space
  • Lightweight and easy to handle

Each infill unit is accurately cut on a CNC machine to suit the exact profile of the sheet pile system; typically supplied in 1.2 metre lengths.


For the infilling of the open pans within a sheet wall piling installation to aid removal following construction of the associated concrete retaining wall. It provides a flat profile for the installation of a waterproof membrane.


Suitable for use with all sheet wall types and profiles.For further assistance regarding suitability please contact the Cordek Technical Team.

Environmental facts about Filcor EPS

The manufacture of Filcor is a low pollution process. Steam is he key component and the water is re-used many times. There is no waste in the process as all cut offs or rejects are recycled.

Filcor is 98% air. This makes Filcor a uniquely resource-efficient material with small carbon footprint.

Filcor is HFC, CFC and HCFC free and Pentane is used as its blowing agent. Pentane has a low Global Warming Potential* (GWP) of less than five. (The EU does not register pentane as a substance hazardous to human health or environment.)

Styrene, used in the manufacture of Filcor, occurs naturally in many commonplace items including strawberries, beans, nuts, beer, wine, coffee beans and cinnamon

* Global warming potential (GWP) is a means of measuring the strength of different 'greenhouse' gases in the atmosphere and can be used to define the impact greenhouse gases have on global warming over specified periods of time. As an example CO has a GWP of 1 over 100 years. All other greenhouse gases HFC, CFC HCFC and methane are measured relative to CO2.
Filcor Recycling
Filcor is 100% recyclable. As a single polymer, Filcor is straightforward to recycle and is recyled into items such as replacement hardwood decking or garden furniture and coat hangers


Data Sheets

Product Issue Date Version Size Download
Sheet Pile Infills Data Sheet 10/2020 3 395.1 KB

Standard Details

Product Issue Date Version Size Download
Sheet Pile Infills Standard Detail 10/2020 3 78.1 KB

MSDS Data Sheets

Product Issue Date Version Size Download
Expanded Polystyrene MSDS 06/2017 5 137.3 KB


Product Issue Date Version Size Download
Construction Solutions 01/2020 2 6.6 MB

NBS Clauses

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Case Study

Greenwich Substation

Cordek were asked to supply Sheet Pile Infills to facilitate the construction of the basement.

Find your nearest Technical Advisor

For international enquiries please contact Peter Blanchard

For enquiries in the Manchester or Liverpool
areas please contact James Provan

Or contact Cordek Head Office