Fortress

 

 

 

 

 

 

 

 

 

STAKKAbox™ Fortress is a range of modular and structural preformed access chambers, suitable for use in carriageway and footway environments (in accordance with Cubis’ installation guidelines). 


The system provides contractors with a means of constructing access chambers quickly and inexpensively, whilst offering improved build quality, reduced defects and enhanced site safety performance.


The Fortress system is moulded in HDPE and possesses excellent strength to weight properties. Each section is ribbed internally to improve loading performance.

Using the Fortress system, complete chambers can be constructed from excavation to reinstatement in less than one hour.



Features & Benefits

  • Fast and easy to install

    STAKKAbox™ chambers are significantly faster to install than conventional alternatives, with complete installations typically taking up to one hour. This results in reduced costs for the installer. No specialist equipment or plant is required in order to install the chamber and there is no need for specialist box builders.


  • Sectional & twin wall design

    Chambers are built to required depth by adding 150mm sections. Due to the twinwall design, individual sections are light meaning they can be manually lifted. Each access chamber possesses vertical and horizontal ribs, resulting in a product that is strong vertically and on the sidewall. Most installations do not require specialist backfills, reducing installation costs.


  • Flexible during installation

    Chambers can be adapted to suit on-site conditions with standard tools
    • Overbuild over existing networks
    • Introduce duct entries for cable entry.
    • Top-section fine adjustment


  • Smooth outer walls with lip to ‘key in’

    Gaps in the outer wall will negatively impact the effectiveness of compaction around the chamber. STAKKAbox™ chambers have smooth outer walls and an outer lip which keys into the backfill.


  • Flat pack option

    Fortress can be supplied in 'flat pack' format to make shipping more efficient.


Available Sizes
Clear OpeningProfileExternalDepth
445mm x 445mmA550mm x 550mm150mm
610mm x 450mmA715mm x 550mm150mm
610mm x 610mmA715mm x 715mm150mm
675mm x 675mmA780mm x 780mm150mm
915mm x 445mmA1020mm x 550mm150mm
915mm x 610mmA1020mm x 715mm150mm
915mm x 915mmA1020mm x 1020mm150mm
1220mm x 675mmA1325mm x 780mm150mm
1220mm x 1220mmA1325mm x 1325mm150mm
1310mm x 610mmB1480mm x 901mm150mm

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