Stakkabox Duct Access Cover - JMF104

This concrete access cover is specifically designed for the JMF104 BT Quadbox system, measuring 91...

Best current price£188.89from Professional Building Supplies

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Professional Building SuppliesStakkabox Duct Access Cover Concrete - For 915Mm X 445Mm Chamber
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£188.89
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B&Q - Stakkabox Duct Access Cover Concrete For 915mm X 445mm ChamberB125Bt And Virgin Media Approved
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Product Information

Full details

The Stakkabox JMF104 duct access cover is a specialized solution designed for civil engineering and telecommunications professionals tasked with maintaining BT Quadbox systems. It offers the key benefit of a unique slide-out design, which enables a single technician to access the chamber safely and efficiently without heavy machinery. While this concrete cover is engineered for superior durability and compliance, users must ensure it is paired exclusively with the JMF104 BT Quadbox system, as it is not universal for all chamber dimensions.

All features

Model Part NumberJMF104COVER
BrandStakkabox

Extended Product Information

FAQs

Is this cover compatible with non-BT systems?

The JMF104 is specifically designed for the BT Quadbox system and is only approved for BT and Virgin Media installations.

Does it require two people to operate?

No, the slide-out design is specifically engineered to be operated by a single person.

What is the weight capacity of this cover?

It carries a B125 loading rating, meaning it can withstand up to 12.5 tonnes.

Can I use this for heavy highway traffic?

No, the B125 rating is intended for pedestrian areas and driveways, not for heavy-duty main road highway traffic.

How do I maintain the sliding mechanism?

Keep the tracks clear of dirt and debris and inspect periodically to ensure they remain unobstructed.

Troubleshooting

Cover is stuck and won't slide

Clear all debris, stones, or mud from the sliding tracks and check for any frame deformation.

Cover feels uneven or rocks

Re-check the levelness of the underlying Quadbox chamber and ensure the cover is seated correctly on its runners.

Pros and Cons

Pros

  • Single-person operation reduces labor costs and site safety risks
  • Officially approved for both BT and Virgin Media installations
  • B125 load rating provides reliable structural stability
  • Precise fit eliminates gaps and ensures secure seating

Cons

  • Weight of concrete components requires standard lifting precautions
  • Specific to JMF104 sizing; not compatible with other chamber models
  • Requires proper leveling during installation for smooth sliding movement

Setup, Compatibility & Care

To install the JMF104, ensure the Quadbox chamber is perfectly level and cleared of debris. Place the guide rails securely on the chamber frame, ensuring the sliding mechanism is free of gravel or dirt. Lubricate the tracks lightly if necessary to maintain ease of movement. For long-term care, regularly inspect the sliding tracks to ensure they are free of mud, ice, or stones. If the cover becomes difficult to slide, clean the contact points with a pressure washer or brush, and check for any minor misalignment in the chamber frame.

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