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Citadel is Cubis' high-security access cover range available in a wide number of sizes in single, twin-leaf and triple designs.

Citadel meets the requirements of LPS 1175: Issue 7 for Level 4 security. Certificate Number: 1294a

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Features & Benefits

The Highest Levels of 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.

Long Life Product

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.

Safe to Lift

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.

Operational Safety

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.

Bespoke Sizes Available

Cubis can assist at all stages of a project, from site survey to installation guidance to provide the best solution for the project.

Badged with Customer Information

Covers can be badged with information to allow for identification by operatives.

LPCB Standard

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 Feature 730 x 410

From Design to Build

Cubis can assist at all stages of a project, from site survey to installation guidance.

Steel covers are designed by an in-house team using the latest technology which allows for 3D models to be shared with the client for collaborative working. Parts can be tested using Finite Element Analysis software to understand how the products perform under load.

Manufacturing takes place in Cubis’ 4,00m² modern facility by experienced fabricators.

Citadel Lifting Handle 730 x 410


Covers are manufactured from a minimum of 4mm thick structural steel plate and are hot dip galvanised to BS EN ISO 1461.
Citadel Front 730 x 410

Load Rating

Citadel covers can be designed to meet the vertical load classes of A15, B125 and C250 set by EN124. 

A15: Suitable for: pedestrians only areas

B125: Suitable for: footways, pedestrian areas and comparable areas, car parks or parking decks.

C250: Suitable for: kerbside channels

Citadel Isometric 730 x 410

Product Resources

Options & Accessories

Citadel covers can be supplied with the following accessories: