Radius Quadbox Stakkabox Duct Access Chamber Section - 915mm x 445mm x 150mm

Approved for use on BT Openreach networks, these Radius Quadbox sections form a modular duct acces...

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Professional Building SuppliesRadius Quadbox Duct Access Chamber Section - 915Mm X 445Mm X 150Mm
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B&QB&Q - Quadbox Stakkabox Duct Access Chamber Section915mm X 445mm X 150mm Internal
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Product Information

Full details

The Radius Quadbox Stakkabox (JMF104) is designed for professional utility contractors and network installers seeking a modular, durable solution for BT Openreach-approved duct access. This 915mm x 445mm chamber section offers the flexibility of stackable height adjustment and site-specific duct entry, though it requires a properly prepared base and independent assembly of accessories like covers or cable management.

All features

Model Part NumberJMF104
BrandRadius

Extended Product Information

FAQs

Are these sections compatible with other brands?

These are designed for the Radius Quadbox system and are specifically approved for BT Openreach networks; mixing with non-standard components is not recommended.

What is the height of each individual section?

Each section is 150mm in height.

Can I cut the sections to fit around pipes?

Yes, the material is designed to be cut to accommodate existing obstacles or legacy networks on-site.

Are the covers included with the section?

No, covers, steps, and cable management systems must be purchased separately.

What tools do I need for duct entry?

You will need a holesaw of the appropriate diameter, using the integrated guides provided on the section for correct spacing.

Troubleshooting

Chamber is not level after stacking

Ensure the base foundation (Type 1 or concrete) is perfectly leveled before placing the first section.

Duct entry point does not align with existing ducting

Use the integrated drilling guides to re-evaluate placement; if necessary, use a larger hole saw or adapter to accommodate misaligned ducts.

Difficulty stacking sections

Check the perimeter of each section for debris or damaged locking mechanisms; ensure they are clean before pressing into place.

Pros and Cons

Pros

  • Modular system allows for exact depth configuration
  • Validated for BT Openreach network standards
  • Flexible installation allows cutting around existing infrastructure
  • Integrated drilling guides ensure industry-standard duct spacing

Cons

  • Requires a separate concrete or Type 1 base foundation
  • Covers, steps, and cable management components sold separately
  • Requires manual assembly and on-site modification for duct entry

Setup, Compatibility & Care

  1. Preparation: Prepare the trench floor with a clean, level surface of Type 1 material or concrete. Ensure the area is cleared of debris.
  2. Stacking: Place the first section and ensure it is level. Add subsequent sections until the final chamber depth is achieved.
  3. Ducting: Mark the required entry points using the integrated guides. Use a professional-grade holesaw to cut the openings.
  4. Completion: Once the structure is set, install necessary accessories such as cable management racks or steps (sold separately) before sealing with an approved cover.
  5. Maintenance: Regularly inspect the chamber interior for sediment buildup or obstruction. Ensure the cover is properly secured to prevent unauthorized access and ingress of surface water.

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