Home > Companies > Cordek Ltd > Cellform HX

Comprising of a cellular construction of expanded polystyrene combined with a robust polypropylene permanent formwork, which has been designed and tested to tight tolerances to achieve the specified performance characteristics. It is available in a variety of depths and grades to suit the most commonly encountered combinations of soil heave potential and concrete depths.

Features and benefits:

  • Reduces the upward force transmitted to the structure.
  • Wide range of depths and grades to suit most applications.
  • Meets the NHBC Technical Standards.
  • Consistent performance supported by extensive testing.
  • Integral, permanent formwork to suit the depth / width of the ground beam

Standard product features


2400 mm



Dependent on the total load that will be exerted onto the panels. Consult manufacturer for information.

Panel Thickness:

Dependent on many factors, including soil analysis results, soil shrinkage category and predicted ground heave. Consult manufacturer's literature for more information.

Integral Formwork:

To suit required dimensions of the ground beam.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-50-30/420 Permanent insulation formwork (PIF)

NBS Specification

NBS Buliding logo
This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Cordek Ltd


+44 (0)1403 799600

Product reference

Cellform HX


[9 / 13]
Safe load/ fail load (kN/m²), 300 mm maximum concrete depth.
[13 / 18]
Safe load/ fail load (kN/m²), 460 mm maximum concrete depth.
[18 / 24]
Safe load/ fail load (kN/m²), 660 mm maximum concrete depth.
[24 / 32]
Safe load/ fail load (kN/m­²), 900 mm maximum concrete depth.


[85 mm]
[155 mm]
[220 mm]


[ ______ ]

Manufacturer details

Spring Copse Business Park,
West Sussex, RH13 0SZ
Tel +44 (0)1403 799600
Fax +44 (0)1403 791718
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