The Alexandra team are here to help...
Alexandra Security Staff Member Alexandra Security Staff Member Alexandra Security Staff Member Alexandra Security Staff Member
Enquire About Protek® 358 Elite – SR1 Rated Prison Mesh Fencing

Our experienced staff are always ready to help and share their personal expertise to guide you to the right perimeter security solution.

01892 833 001

or Email:

    SR1 Rated 358 Flat Panel Security Fence System

    Protek 358 Elite is an improved version of our standard prison mesh fencing that is approved to SR1 security standard by the LPBC (Loss Prevention Certification Board).

    The LPCB (Loss Prevention Board) works with the UK government to set the standard for products in the security industry, and provide a standard that buyers can use to verify a products resistance to attack. Every product approved by the LPCB has been thoroughly tested to meet a minimum standard, which is called an SR rating.

    SR1 security fencing can withstand opportunistic attempts at forced entry using basic tools such as cable cutters, screwdrivers, knives and hammers, for a period of up to 1 minute. This, combined with Protek 358’s tight mesh spacing, creates a security fence that is very hard to climb, cut through or force entry.

    SR1 rated 358 fencing is ideal for security critical perimeter installations, such as around infrastructure, financial depots and government buildings. For extra security, a variety of fence toppers can also be added, such as our rotating anti-climb fence spikes.

    Various Sizes And Colours Available

    Protek 358 Elite is available in heights from 1.8m, up to 3m. As the height of the 358 fence gets taller, the size of the supporting posts is increased to ensure maximum stability. All our of 358 mesh panels are galvanised to provide long-lasting weather protection, and can also be powder coated to over 1000 RAL colours, with RAL 6005 (Moss Green) held in stock for fast dispatch.

    Complete Your Security Fencing With Access Gates

    We can either manufacture Protek 358 security gates to your bespoke size, or for quick lead time we stock a comprehensive range of singles and doubles in various heights and widths. Hinges are inverted on all gates to prevent lift off.

    One Of The UK’s Leading Metal Boundary Fencing Suppliers

    Alexandra Security is a leading supplier of mesh fencing in the UK, and is committed to providing a high level of customer service, fast turnarounds and on-time deliveries. Our expert team is on hand to listen to your requirements and offer a range of solutions based on their product knowledge and expertise. Contact us today for a no obligation quote on SR1 rated security fencing.

    Nominal Fence Height (m) Panel Size Height x Width (mm) Post Centres (mm) Overall Length of Post (mm) Post Size (mm) Ends/Inters (1 Clamp) Corners (2 Clamps)
    1.8 1,833 x 2,515 2,440 2,450 60 x 60 7 14
    2.1 2,138 x 2,515 2,440 2,800 60 x 60 8 16
    2.4 2,442 x 2,515 2,440 3,100 60 x 60 9 18
    3.0 3,001 x 2,515 2,440 3,750 80 x 40 11 22

    Subject To Change

    More Info


    Posts, Clamps and Fixings

    The posts and full length clamp bars that Alexandra Security Limited offers provide a fixing system which secures the panels but allows for variations. The system is easy to install and allows the panels to be stepped, helping the fence line to follow the contours of the ground. With the vandal resistant security fixings this post and clamp system.


    • Threaded insert posts available


    Product and Finish Standards

    • Security rated to SR1 standard by the LPCB
    • Mesh panel wire manufactured to BS 4102 and galvanised to BS EN 10244-2:2001 class D, weld strength is 75% of the minimum tensile strength of the wire (tensile range 540-690 N/m2)
    • Post material manufactured to BS EN 10210-2:1997 and galvanised to BS EN 10346:2009
    • Panels & Posts are powder coated to BS EN 13438:2005 (min 100 micron)