358 prison mesh panel fixed to a steel post with a clamp bar and security bolt

358 anti-climb mesh system

Prison Mesh Fencing in Essex

Pro Fencing can supply and install 358 prison mesh fencing, a closely spaced, anti-climb perimeter system with clear visibility through the boundary.

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Commercial fencing installation across Essex and surrounding areas

System

358 welded mesh, 76.2mm x 12.7mm aperture, 4mm wire

Typical applications

Schools, utilities, plant compounds, sensitive premises

Finish options

Hot-dip galvanised, or galvanised and powder-coated

Access arrangements

Matching mesh pedestrian, swing and sliding gates

Overview

Very small apertures, very little to work with

Prison mesh, usually called 358 mesh after its imperial wire spacing, is a welded panel with apertures too small to admit fingers or standard hand tools. That single characteristic is what makes the system effective: there is nothing to grip, nothing to stand on, and cutting through requires bolt croppers working one wire at a time.

It is specified where climbing and cutting are realistic risks: school and academy boundaries, utility and substation compounds, plant and machinery enclosures, waste and recycling sites, communications installations and premises that have been targeted before. Visibility through the mesh stays good, which suits sites relying on supervision or camera coverage.

Prison mesh costs more than twin-wire or V-mesh, so it is worth applying where it earns that cost. On many perimeters the sensible specification uses 358 on the exposed or previously attacked boundaries and a lighter mesh elsewhere. Fixing detail matters as much as the panel: clamp bars or shrouded fittings and deep posts stop panels being levered or unbolted from the attack side.

Because the panels are heavy, rigid and unforgiving of poor setting out, we assess levels, buried services, existing structures and the panel module on site before quoting. That is also where we confirm heights, gate positions and whether a lighter system would serve part of the boundary just as well.

Applications

Where prison mesh is specified

358 mesh suits boundaries where climbing, cutting or repeat intrusion is a genuine concern rather than a general worry.

  • 01Schools and academies
  • 02Utilities and substation compounds
  • 03Plant and machinery enclosures
  • 04Waste and recycling facilities
  • 05Communications and infrastructure sites
  • 06High-value storage yards
  • 07Restricted and public-sector premises

Why it works

Built to solve the problems commercial boundaries actually have.

01

No foothold, no finger hold

The 358 aperture is too small to grip or stand on, so the panel resists climbing without relying on a topping.

02

Strong cut resistance

Heavier wires and welded intersections mean cutting through takes time, noise and dedicated tools.

03

Clear surveillance sightlines

Despite the tight mesh, visibility through the boundary stays good enough for supervising staff and cameras.

04

Difficult to tamper with

Clamp bars or shrouded fixings and deep post foundations stop panels being unbolted or levered from outside.

Specification

Options and specification

Panel height, post system and fixings are selected against the assessed risk and confirmed following a site survey.

Systems

  • 358 welded prison mesh panels
  • Heavier gauge panels for higher risk
  • Combined with twin-wire on lower-risk runs
  • Matching mesh gates

Heights

  • Standard boundary heights for schools and compounds
  • Tall perimeter runs where the risk requires it
  • Stepped runs across sloping ground
  • Toppings only where genuinely justified

Posts & fixings

  • Concreted steel posts sized to panel height
  • Clamp bar or shrouded security fixings
  • Reinforced corner and gate posts
  • Ground-line detailing to prevent lifting

Finishes & access

  • Hot-dip galvanised
  • Powder-coated black or green over galvanising
  • Pedestrian, swing and sliding gates
  • Access control where required

Final specification is confirmed following a site survey.

Our process

The Pro Fencing installation process.

  1. Site assessment

    We inspect the boundary, access, ground conditions and operational requirements.

  2. Specification

    We recommend a suitable fencing system, height, finish and gate configuration.

  3. Installation planning

    The work is coordinated to minimise disruption and maintain safe site access.

  4. Professional installation

    The fencing and gates are installed carefully, checked and left with a clean, consistent finish.

Assessment to installation

Specification enquiry

Discuss your prison mesh requirements

Prison mesh is designed for sites requiring a closely spaced, anti-climb perimeter system with excellent visibility through the boundary. Pro Fencing can assess your site requirements and recommend an appropriate mesh configuration, height, finish and gate arrangement.

Why Pro Fencing

The right system starts with the site.

We assess how the boundary needs to perform before recommending a fencing system, finish or gate configuration.

  • Commercial specialists

    Fencing for industrial, educational, commercial and public environments.

  • Specified for the site

    Recommendations based on the boundary, ground, access and security requirement.

  • Planned around operations

    Installation coordinated to maintain safe access and minimise disruption.

  • Clear from start to finish

    A defined route from site survey and specification through to installation.

Our work

Chain link fencing installed on a commercial boundary
358 prison mesh panel fixed to a steel post
Green welded mesh ball-stop fencing alongside a pitch
Ball stop netting overlooking a sports pitch
Chain link fencing in front of a sports pitch
Mesh double gates to a school playground
Green mesh gate opening onto a playing field
Galvanised palisade fencing topped with razor wire
Hit and miss timber gate in steel posts
Close boarded timber double gate to a car park
Long close boarded timber fence run at a commercial site
Acoustic timber fencing with capping
Green site hoarding installed along a street
Galvanised steel palisade security fencing
Green double wire mesh MUGA fencing
Fencing materials delivered to site

Coverage

Commercial fencing installation across Essex

Pro Fencing supplies and installs commercial fencing systems throughout Essex. We work with businesses, schools, contractors, sports facilities and public-sector organisations, providing site-specific fencing and gate solutions for new installations, upgrades and boundary replacements.

  • Brentwood
  • Basildon
  • Chelmsford
  • Billericay
  • Benfleet
  • Southend-on-Sea
  • Rayleigh
  • Wickford
  • Grays
  • Thurrock
  • Romford
  • Epping
  • Harlow
  • Colchester

FAQs

Questions we are asked on site.

The name comes from the panel's imperial wire spacing, roughly 3 inches by 0.5 inches, with 8 gauge wire. In practice it describes a welded mesh with apertures small enough to exclude fingers and most hand tools, which is why it is chosen where climbing and cutting resistance matter more than initial cost.

Get started

Planning a commercial fencing project?

Talk to Pro Fencing about your site, security requirements and installation timeframe. We can assess the boundary and recommend a suitable solution.

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Office
33 Elm Grove, Hullbridge, Hockley, SS5 6ER

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