160mm Cellcore HX S Anti Heave Board is a specialised under-slab solution engineered to protect reinforced concrete floor slabs from ground heave damage. This 160mm cordek hxs board combines a cellular Expanded Polystyrene structure with precision manufacturing to deliver reliable performance against upward soil movement.
Brand: Cordek®
Model: 160mm (Grade 9/13)
Thickness: 160mm
Length: 2400mm
Width: 1200mm
Coverage: 2.88m2
Grade: 9/13
Standard Panel: 2400mm x 1200mm
Beams Widths: 2400mm x 1200mm to 300mm (in 25mm increments)
Material: (EPS Insulation) Expanded Polystyrene
Shipping method: Rigid Vehicle ǀ Courier
Applications: Reinforced concrete floor slabs
BBA Certified: Yes
Maximum depth of concrete: 300mm
Safe load: 9 kN/m2
Shrinkage Category: Low
Plasticity Index: 20-40
Fail load: 13 kN/m2
Features: Durable ǀ 4th Generation ǀ minimize wastage
Manufacturer: 160mm Cordek Cellcore HXS®
The 160mm Cordek Cellcore HX S Grade 9/13 functions as a protective barrier beneath reinforced concrete floor insulation slabs, reducing the impact of ground heave by limiting upward force transmission to your structure.
This Anti Heave Board has been precisely engineered and tested for concrete depths up to 300mm, ensuring consistent performance across all specified load conditions and environmental factors.
We supply a comprehensive range of depths and grades covering standard soil heave scenarios and concrete thickness combinations. Specialist variations are available for pile caps, ground beams, or applications requiring integrated insulation, permanent formwork, or passive gas venting.
The 160mm Cellcore HX S range protects reinforced concrete floor slabs from upward forces generated by ground heave effects.

For concrete thicknesses between 1220mm and 2000mm, further grades of Cellcore are available. For further advice please contact the InsulationBee Technical Team on 02038839057 / 02038839057.
Each 160mm Cellcore hxs grade is engineered to support a specific concrete thickness, plus an additional allowance for live loads of 1.5 kN/m², with minimal creep compression over a 16-hour curing period. This performance level is defined as the "SAFE LOAD."
When the predetermined load threshold is exceeded, the polystyrene legs of the 160mm Cordek panels will buckle and collapse due to underlying ground movement, referred to as the "FAIL LOAD."
During design, ensure the slab, beam, or pile cap is sized to handle the difference between its own weight and the fail load, as shown in the design examples provided.
Browse our Cordek range and filter by thickness or coverage using the left-hand side options. For product suitability advice on your project or quantity discount quotations, contact us on +4402038839057, email sales@insulationbee or use Live Chat - Lowest UK Insulation board Prices.










