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Flooring & tiling

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Flooring & underlay

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Diall 2.2mm Extruded polystyrene (XPS) foam Laminate & solid wood flooring Underlay panels

Sold & shipped by B&Q

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£2 per M2
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Product details

Product information

  • Guarantees sustained quality & global excellent performance with only 2.2mm thickness
  • Suitable for Laminate & solid wood flooring
  • Suitable for use with underfloor heating
  • Guarantee - 2 years
  • 2 years Guarantee

Features and benefits

  • Good for impact sound reduction (20dB), convenient for installation (folded-accordion: easy lay and easy cut system)
  • Suitable for frequently used rooms
  • Low thickness for a good performance
  • Ideal for low installation heights (Flat surface needed)
  • Helps to level sub-floor irregularity/unevenness up to 1mm
  • Handle & fit with care. In order to make the fitting task easier, it is recommended to apply an aluminium tape to protect the underlay edges between each underlay section as it is laid


MaterialExtruded polystyrene (XPS) foam
Fitting typeFloating
Product length12000mm
Product width1250mm
Product thickness2.2mm
Insulation typeThermal
Energy rating pre 2021A+
Fire classE
Pack quantity1
Product code3663602918035