Citadel Access Cover

Citadel Access Cover


Access Covers

With a large range of access covers to compliment our access chamber systems, individual needs can be met with a bespoke cable protection combination. The Citadel access chamber is a part of Cubis’ high-security access cover range, available in a wide number of sizes in single, twin-leaf and triple designs. Covers can also be badged with customer information to allow the covers to be easily identified.

How do access covers work? Cubis access covers are used in combination with access chamber systems to protect the infrastructure networks below. Steel covers are designed by an in-house team using the latest technology, where parts can be tested using Finite Element Analysis software to understand how the products perform under load.

Citadel Access Chamber Installation

Cubis Citadel Installation

Access Covers

Citadel Access Cover

Features & Benefits

Variable Sizes

Citadel access chambers are available in a range of bespoke sizes, developed to meet specific client needs and to provide the best solution for a project.

Bespoke Identity

Covers can be badged with bespoke information to enable easy identification by operatives.

Access Cover For Safety

When it comes to keeping infrastructures safe, Citadel access covers are a perfect solution. Covers are prevented from slamming shut by the presence of a safety arm with manual pull override. Access covers can also be specified with hinged fall protection safety grids.

Long Lifespan

Cubis access covers have long lifespans, reducing costs for replacements by the end user. Citadel covers are hot dip galvanised to BS EN ISO 1461. For increased longevity and aggressive environments a superior galvanising finish can be used to give a 100 (min) or 140 (min) micron zinc coating.


Opening of cover leaves is aided by a torsion spring and a lifting handle. Covers are fitted with removable bolt-off lifting plates that allow for the cover to be moved safely and easily.

High Security

Citadel is rated to Level 4 of LPS 1175, suitable for protecting Critical National Infrastructure sites. Cover security can be enhanced with a double-skin cover for additional protection during attack.


How The Citadel Cover Works

The Citadel access cover is used for infrastructure and cable protection, when used in conjunction with an access chamber. Covers are available in a variety of different sizes, in single, twin-leaf and triple designs,  and can be made to bespoke requirements to suit client needs. The Citadel access cover is a very high-security access cover range from Cubis.

Cubis’ Citadel range of upstand access covers, meet the requirements of LPS 1175: Issue 7 for Level 4 security.

➡ See also | Access Chambers | Cable Protection | Cable Trough


citadel materials


Covers are manufactured from a minimum of 4mm thick structural steel plate and are hot dip galvanised to BS EN ISO 1461.







Safety Standard
citadel safety

Cubis’ Citadel range of upstand access covers, meet the requirements of LPS 1175: Issue 7 for Level 4 security.

This standard, designed by the Loss Prevention Certification Board (LPCB), sets tests that classify the intruder resistance based on attack tools, times and methodology. LPS 1175 is a requirement for access covers in many industries, in the UK and internationally, due to this extensive testing regime.




citadel design


AX-S™ Citadel covers are suitable for installation in environments rated to B125 under EN124.

Suitable for footways, pedestrian areas and comparable areas, car parks or parking decks.






For additional data sheets contact Thorne & Derrick, or visit Cubis’ technical library here

Thorne & Derrick are also distributors of Filoform duct sealing products.

Protection of Cables Against Water Ingress (Flood), Gas Migration (Explosion) & Fire – see duct sealing systems for further information