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LPS 1175 Rated Sliding Security Doors
Our LPS 1175 rated sliding security doors are engineered to deliver certified resistance against forced entry while maintaining smooth, reliable sliding operation. Designed for sites where access flow & high security must work together, these doors provide LPCB tested protection for commercial, industrial and high risk environments.
LPS 1175 is the UK’s most widely specified standard for resistance to forced entry. When applied to sliding security doors, it ensures the entire door set, including frame, leaf, locking system and track assembly, has been independently tested against sustained physical attack using defined tool sets.
“Our LPS 1175 sliding door range is suitable for applications where traditional swing doors are impractical or where wide, unobstructed openings are required without compromising security.
Each door is designed to meet a specific threat level, allowing specifiers to match security performance precisely to risk.”
What is LPS 1175 and how does it apply to sliding doors?
LPS 1175 is a Loss Prevention Standard developed by the LPCB to assess how long a security product can resist a forced entry attempt. Unlike basic security classifications, it focuses on delay, the critical factor that allows alarms to activate and response measures to take effect.
For sliding security doors, LPS 1175 testing evaluates:
Resistance of the door leaf and frame under attack
Integrity of the sliding mechanism and anti-derail systems
Performance of locks, shoot bolts and locking points
Overall stability during sustained tool-based assault
Only doors that pass full system testing are certified and listed on Red Book Live.
LPS 1175 Issue 8 explained
The latest Issue 8 of LPS 1175 introduced a clearer classification system based on:
Tool category (A, B or C)
Resistance time in minutes
For example:
B3 indicates resistance to tool category B for 3 minutes
C5 indicates resistance to advanced tools for 5 minutes
This framework allows architects and security consultants to specify sliding security doors based on measurable risk, rather than relying on vague or marketing-led security claims.
Typical LPS 1175 ratings for sliding security doors
Sliding doors are commonly specified to the following LPS 1175 ratings:
SR2 (B3)
Designed for medium-risk environments where opportunistic or limited forced entry attempts are expected.SR3 (C5)
Intended for high-risk locations where determined attackers may use more advanced tools over a longer attack period.Higher C ratings
Used for critical infrastructure, data centres and high value assets where delay time is critical.
Each rating represents a different balance between security, cost and operational use, making correct selection essential.
Applications for LPS 1175 sliding security doors
LPS 1175 sliding security doors are widely used across sectors that require certified forced entry resistance without sacrificing access efficiency, including:
Retail premises requiring secure after-hours protection
Warehouses and distribution centres with wide vehicle openings
Data centres and utility buildings
Commercial offices and mixed-use developments
Secure residential projects where aesthetics and performance must align
Public sector and infrastructure sites with compliance requirements
Design, construction and performance
Our sliding security doors are manufactured using reinforced steel construction to ensure structural integrity under attack. Door infill options can be tailored to suit both security and visual requirements, including solid steel, mesh infill or certified security glazing.
Key performance features include:
Heavy-duty sliding tracks with anti-derail protection
Multi-point locking systems tested as part of the LPS 1175 certification
Smooth manual or automated operation
Weather resistant finishes suitable for external installations
Compatibility with access control, intercoms and alarm systems
Each door is designed as a complete security set, ensuring certification is maintained from factory to installation.
Choose the right LPS 1175 sliding door for your site.
Not all LPS 1175 sliding security doors offer the same level of protection. Use the options below to select the rating that matches your site’s risk profile and compliance requirements.
SR2 (B3) LPS 1175 Sliding Security Doors
Suitable for medium-risk environments requiring certified resistance to common hand tools over a 3 minute attack period. Ideal for commercial, retail and mixed-use sites.
SR3 (C5) LPS 1175 Sliding Security Doors
Designed for high-risk sites where attackers may use enhanced tools over a sustained 5 minute attack. Commonly specified for data centres, utilities and high value assets.
Bespoke and higher-rated LPS 1175 sliding solutions
For sites with unique threat profiles or compliance requirements, we offer bespoke sliding security door solutions engineered to meet higher LPS 1175 classifications.
Why specify LPS 1175 sliding security doors?
Specifying LPS 1175 sliding security doors provides:
Proven, independently verified resistance to forced entry
Clear alignment with insurance and regulatory expectations
Reduced risk of unauthorised access and asset loss
Confidence for stakeholders, tenants and insurers
A scalable security solution that matches real-world threat levels
Compliance and assurance
All LPS 1175 sliding security doors are:
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Independently tested by LPCB approved laboratories
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Listed on Red Book Live
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Compatible with Secured by Design requirements where specified
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Supplied with full certification documentation
Professional installation and ongoing maintenance are essential to preserve certification and long-term performance. We provide installation guidance and servicing options to ensure continued compliance.
Speak to our security specialists
If you are planning a project that requires LPS 1175 sliding security doors, our team can help you select the correct rating, configuration and installation approach.
Whether you need SR2, SR3 or a bespoke certified solution, we will ensure your sliding security doors meet both performance and compliance requirements.
Request technical advice or a quotation today..
Speak to an Expert Regarding LPS 1175 Rated Sliding Security Doors Today!
Discuss your LPS 1175 Rated Sliding Security Doors requirements with our experienced security specialists. Submit the form and we’ll contact you to explore the most effective solution for your project.
Our experts will:
- Assess your project requirements and security needs
- Recommend compliant and proportionate solutions
- Provide technical guidance and specification support
- Advise on design, installation and next steps
FAQ’s
LPS 1175 is a UK security certification that measures how long a sliding security door can resist a forced entry attack. It tests the complete door set, including the frame, leaf, locking system and sliding mechanism, against defined tools over a timed attack period.
SR2 sliding security doors are tested to resist common hand tools for a minimum of 3 minutes. SR3 sliding security doors provide a higher level of protection, resisting more advanced tools for at least 5 minutes, and are specified for higher risk environments.
Yes, LPS 1175 sliding security doors can be automated while maintaining certification. Automation is permitted when the motor, locking and safety systems form part of the tested door configuration and are installed and maintained in accordance with LPS 1175 requirements.
