Modular Access Chambers

Access chambers are positioned at regular intervals along the duct route to allow access and storage.

We offer two types of pre-formed, modular chambers which are the ideal alternative for labour intensive concrete and brick-built chambers:

  • QuadBox: a stackable segmental system
  • RadBox: a versatile and fully modular interlocking panels and corners system

Both chambers are manufactured in accordance with ISO 9001:2008 and ISO 14001:2004 and suitable for use in non-carriageway applications (Class B125).


  • Cost savings:
    single visit installation and no lifting equipment required
  • Rapid installation:
    simple construction with no need for specialist teams
  • Product longevity:
    excellent built-in strength, stiffness and chemical and weathering resistance
  • Health & Safety:
    lightweight to comply with European manual handling best practice, reduced exposure to dust, vibration and chemicals

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