Atlas 3-5-8

ATLAS® welded mesh is the ideal delaying element against any attempt at intrusion. This system, commonly referred to as 'Prison Mesh' or 358, is ideal for high security fencing applications. The Citadel ATLAS 358 flat panel (no crimp) is the best anti-climb fencing system that Citadel produce. The ATLAS 358 fencing system overlap the SHS posts, which is then attached with either a clamp or security brackets for easy installation.

Citadel ATLAS 358 fencing panel system can be supplied in a variety of finishes, and can be supplied to 6 metres high. Security can be further enhanced by burying the bottom part of the panel and this mesh panel is ideally suited to work on our high security Bi Steel post.


  • Attractive and easy on the eye
  • Easy and safe fittings
  • Good visibility even with the rigidity of the welded mesh panel
  • Variety of heights and RAL colours


  • Schools
  • Security Car Parks
  • Business Parks
  • Airports
  • MOD
  • Secure Sites & Police Stations
  • Utility companies

Product Guidance:

Panel Width: 2515mm

Post Centres: 2440mm

Mesh & Wire: 76.2 x 12.5 mm x 4 mm (horizontals and verticals) 3-5-8

Posts: 60x60 SHS, 80x40 SHS, 100x50 SHS, 120x60SHS. Posts are hot dipped galvanised. Size of post is subject to height of fence required.

Gates: Swing and sliding gates are available in single or double leaf with manual or automatic operation.

See below for specification.

Powder Coated. Size of post is subject to height of fence required.

Height - 1.83, 2.4 Clamp Bar & Security Bolt 6 60 x 60 SHS

Height - 2.03, 2.7 Clamp Bar & Security Bolt 6 60 x 60 SHS

Height - 2.43, 3.1 Clamp Bar & Security Bolt 7 60 x 60 SHS

Height - 3.03, 3.75 Clamp Bar & Security Bolt 10 80 x 40 SHS

Height - 4.06, 4.75 Clamp Bar & Security Bolt 12 80 x 40 SHS

Height - 5.09, 6.0 Clamp Bar & Security Bolt 14 100 x 50 SHS

Height - 6.09, 7.0 Clamp Bar & Security Bolt 16 120 x 60 SHS

Detailed Description/Benefits:

  • Welded Mesh Panels.
  • Finish Galv & Powder Coated Galvanised finish as standard and can be powder coated to BS EN 13438, or with NEW CODI COAT offering BS EN 10223-7 - 1000 hour salt spray testing.
  • Anti climb design with small aperture making climbing hard.
  • Easy Installation.
  • Mesh Panels can be stepped to accommodate fall.
  • Strong & Safe design
  • Can be applied in almost any application.

Mesh Panels - Optional Galfan Zinc Alloy coated.


Matching swing and sliding gates are available.


This guarantee covers the integrity of assembly, joints, fabrication, design and chemical make-up of the steel. It does not include the powder coating, galvanising, graphic art or any non steel based products.

All Structural steelwork is galvanised to BS EN ISO1461-2009.

All products manufactured by or on behalf of Citadel Industries are subject to a 10 year warranty period commencing from delivery or installation date. This warranty however does not cover any damage, or reduced performance if such a defect is a result of vandalism, misuse, or if the product/installation has been used for any purpose other than its original design remit. Occasions which are not the result of acts of vandalism, accidental damage, operator misuse or unsuitable operating environments, we will replace the item free of charge. (excludes parts that are subject to wear and tear).

  • Working with Citadel was a delight from start to finish. They worked hard to fulfil our requests and we are very happy with our product. Eric Eromosele, Gladtrico international Ltd
  • We work on challenging sites and Citadel constantly provide positive solutions. Our relationship goes from strength to strength and I wouldn’t hesitate to recommend them. Martin Finnegan, Britplas
  • Citadel have, for many years, been producing various types of fencing and bespoke fabrications for our company. Their customer service, advice and finished product is always of the highest standard Terry Hocknull, JP Landscapes & Construction Ltd.
  • ‘Citadel have proved to be a very reliable supplier over many years, I would not hesitate to recommend them!’ Tony Debattista, Deba Enterprises