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HiSec Prison 358 Custodial Security Fencing System

Verified by manufacturer 9 days ago

Zaun Limited

HiSec Prison is a custodial 358 welded mesh fencing system designed for prisons and secure units, manufactured to MoJ specifications with secure-side fixing and clamp bar installation.

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Application

HiSec Prison is suitable for:

  • Category A–D prison perimeters
  • Custodial facilities
  • Secure training centres
  • Immigration removal centres
  • Secure mental health units
  • High-risk secure institutions

Description

HiSec Prison is a custodial 358 welded mesh security fencing system designed specifically for use on prison perimeters and secure mental health facilities.

Manufactured using a 76.2 x 12.7 mm mesh aperture with 4 mm vertical and horizontal wires, the close welded configuration restricts climbing aids and reduces the risk of contraband transfer through the fence line.

Panels are typically supplied at 2515 mm wide x 5200 mm high, with alternative heights available. Mesh is manufactured from pre-galvanised steel wire to BS EN 10244-2 Class A (Zn95Al5) standards to provide enhanced corrosion resistance and long service life.

Panels are fixed to Ministry of Justice approved circular hollow section (CHS) posts using full-length clamp bars and secure fixings. All panels are installed to the secure side of the posts to reduce the risk of tampering or panel removal.

The system can be enhanced with FST security topping, steel cladding, privacy screening or double-skin configurations where required.

HiSec Prison is manufactured in accordance with BS 1722 Part 14 and supplied in line with current MoJ / HMPPS custodial specifications.

Key Features and Benefits

  • 358 welded mesh custodial fencing system
  • 76.2 x 12.7 mm anti-climb mesh aperture
  • 4 mm vertical and horizontal wires
  • Reduces risk of contraband transfer
  • Panels fixed to secure side of posts
  • Full-length clamp bar fixing system
  • MoJ-approved circular hollow section posts
  • Typical height 5.2 m (other heights available)
  • Manufactured to BS 1722 Part 14
  • Wire to BS EN 10244-2 Class A (Zn95Al5)
  • Compatible with FST, razor wire and barbed toppings
  • Privacy screening and double-skin options available

General information

Finish

Galvanized

Powder-coated

Material

Metal

Width

2515 mm

Height

3600 mm

4204 mm

5207 mm

CAWS

Q40/126 Open mesh steel panel security fencing

Q40/27 Open mesh steel panel general-purpose fencing

Q40/30 Proprietary fencing

Q40/430 Proprietary fencing

Specification data

Classification data

Height

3600 mm.
4204 mm.
5207 mm.

Colour/ Finish

Galvanized and polyester powder-coated (PPC).

Guidance for specification option:

Insert RAL colour requirement.

Galvanized only.

Fixing

Bolt down.
In ground.
On wall.

Panel termination

Buried.
Concrete sill.
Ground level.

Panel fixings

Shear nuts.
Standard.

Manufacturer guidance

Panels fixed to posts with full height 40 x 8 mm clamp bar with twin bolt fixings at 152.4 mm centres. The full height clamp bars create a safe finish with the mesh ends behind the clamp bar.

Accessories/ Other requirements

Not required.
Barbed and razor coils.
CCTV.
Double skin enhancements.

Guidance for specification option:

For additional protection.

FST security toppings.
Perimeter Intrusion Detection (PIDs).
Printed panel.
Privacy screens.

Guidance for specification option:

For additional privacy.

Pedestrian gates.

Guidance for specification option:

Available in single leaf, 1.2 m wide, or width to suit. Consult manufacturer and insert requirements.

Vehicular gates.

Guidance for specification option:

Available in single and double leaf, 3.8 m wide, or width to suit. Consult manufacturer and insert requirements.

Panels

HiSec 358.

Guidance for specification option:

Comprising of 12.7 x 76.2 mm mesh with 4 mm vertical wires at 76.2 mm centres and 4 mm horizontal wires at 12.7 mm centres.

Posts

Round prison specified posts.

Guidance for specification option:

Centres: 2440 mm.

Gates

Round tubular frame, Zaun HiSec mesh clad on inside the frame. Approved locking system and drop bolts.

Standards

To BS 1722, Part 14, BS EN 10244-2.

Width

2515 mm.

Mesh size

76.2 x 12.7 mm.

WireDiameter

4 mm / 4 mm.

Guidance for specification option:

Vertical x Horizontal.

Fixings

Through bolts.
Washers & nuts

Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Manufacturing plant location

Material

Metal

Recyclability

100% recyclable at End of Life

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

80 %

Expected Life

50 year

Literature

High Security Fencing, Gates and HVM Solutions Catalogue 2026

High Security Fencing, Gates and HVM Solutions Catalogue 2026

CPD materials

Designing Secure Perimeters: A Practical Guide for Architects

Designing Secure Perimeters: A Practical Guide for Architects

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