Protecting critical national infrastructure, commercial sites, and other high-risk environments is becoming more challenging. Threats continue to rapidly evolve, and it is essential for perimeter security to evolve with them. Solutions must be appropriate for the specific level of risk and the realities and operational restrictions of each site.
Key to understanding effective physical security design starts with understanding what different standards measure, where they apply and how they support a wider security strategy.
A certified product can provide valuable reassurance, but certification alone does not guarantee effective physical security.
Why Understanding Standards Matters
The range of security standards used around the world can make specification a complex process. Different countries and industries use different testing methods, certification schemes and performance requirements. Understanding what a certification demonstrates and, just as importantly, what it does not, is essential when assessing risk and selecting the right solution.
Within the UK, Loss Prevention Standard LPS 1175, administered by the Loss Prevention Certification Board (LPCB) and operated by the Building Research Establishment (BRE), is one of the most widely recognised certification schemes for physical security products. It combines prescriptive requirements with performance testing to assess how long a product can resist forced entry using defined categories of attack tools.
Issue 8 introduced a more flexible approach by replacing the previous security ratings with a two-part classification based on tool category and delay time. Products can now be specified more accurately for the specific risks, threats and expected response times of individual sites.
Across mainland Europe, EN 1627 provides resistance classifications for products such as doors, windows and shutters. It was developed primarily for building products rather than perimeter protection, so direct comparisons with fencing standards should be made with care.
In North America, ASTM standards are commonly used to assess forced entry resistance for perimeter systems. The testing methodology differs from other certification schemes, making direct comparisons difficult. Instead of comparing standards directly, the focus should be on understanding what each one measures and whether it suits the risks being addressed.
Certification is Not the Same as Testing
One area that is often misunderstood is the difference between testing and third-party certification. A manufacturer may state that a product has been tested to a particular standard or designed in line with one. Formal third-party certification goes much further than a single successful test.
Independent certification bodies carry out ongoing factory audits to verify that manufacturing processes, materials and quality controls remain consistent with the product originally tested. This provides confidence that certified products continue to perform as expected, rather than only the original prototype meeting the required standard.
Without this level of independent verification, small changes in materials and manufacturing tolerances can affect performance during an attack.
Understanding this distinction is essential when assessing risk and specifying physical security products.
Looking Beyond the Rating
While certification provides valuable assurance, it should never be viewed in isolation. Physical security products are designed to delay an attacker, allowing time for detection and response. Their effectiveness depends not only on the product itself, but also on how it fits into the wider security strategy.
For example, a perimeter fence may achieve its certified delay time against the tools used during certification testing. However, if an attacker uses more capable tools than those covered by the certification, the delay provided by the perimeter may be reduced. This highlights the importance of understanding the threat and why security should always be considered as a layered system and not reliant on one single element.
Similarly, even a highly rated perimeter system may fail to deliver its intended level of protection if it is poorly installed, installed in the wrong place or combined with inadequately designed access points and perimeter intrusion detection.
Effective security is rarely achieved through a single product. It relies on working together in a comprehensive integrated security plan and design.
The Role of Security Consultants
Selecting an appropriate security standard is only one part of the design process. The next step is understanding how that standard should be applied to a specific site.
Every location presents a different combination of risks, threats, budgets, operational requirements and environmental constraints. Response times, access requirements, asset value, surrounding infrastructure and future maintenance all influence the most appropriate solution.
Rather than beginning with a particular product or certification, security consultants start by understanding the site’s risks, threats, operational requirements and expected response times. This allows them to recommend solutions that are appropriate for the level of risk, rather than simply specifying the highest-rated product available.
Manufacturers also have an important role to play. Their technical knowledge of product performance, installation and certification requirements provides valuable input throughout the specification process. Bringing together manufacturing expertise and independent security advice helps ensure products are used in the right way and in the right locations.
Keeping Pace with Evolving Threats
The security landscape continues to change. Battery-powered tools, cutting equipment, drones and other technologies are changing the way attacks are carried out.
Standards and best practice need to evolve too. That makes continuous professional development (CPD) increasingly important for those specifying and designing physical security measures.
Professional bodies such as The Security Institute help security professionals keep their knowledge up to date and maintain high professional standards. Through structured CPD, members stay informed about emerging threats, changing legislation, evolving standards and new technologies.
For clients, this means recommendations are based on current knowledge rather than outdated assumptions. It also helps ensure security strategies remain effective as risks, threats and technologies continue to evolve.
Building Resilience Through Collaboration
Strong perimeter security relies on both robust engineering and informed decision-making.
Independent certification gives confidence that physical security products have been tested against recognised standards and are manufactured consistently. However, certification is only one part of the process.
The best security outcomes come from combining high-quality products with thorough risk assessment and experienced security professionals who understand how every element contributes to the overall security strategy.
At ExMesh Engineering, we work closely with customers, consultants, and contractors to understand the wider operational environment. Alongside supplying independently certified perimeter security systems, we help ensure the right solution is specified for the level of risk, threat and operational requirements of each site.
As threats continue to evolve, organisations should look beyond certification alone. Selecting the right standard is only the beginning. It must then be applied correctly and integrated into a wider security strategy. When engineering expertise, recognised standards and informed security advice come together, the result is better protection for people, property and critical infrastructure.
