Collection: LPS1175 Rated Steel Doors

LPS 1175 steel doors are available in multiple configurations, provided each version is tested and certified as a complete door set. We offer security Levels 1–4, with increasing resistance to forced entry.

LPS 1175 Personnel Steel Doors

Single leaf doors designed for standard access points in higher risk environments.

Commonly used for:

• Plant rooms
• Utility buildings
• Commercial premises
• Secure storage areas

Available in Levels 1–4 depending on risk profile.

LPS 1175 Emergency Exit Steel Doors

Security-rated doors fitted with compliant escape hardware:

• Panic bars (BS EN 1125)
• Emergency push pads (BS EN 179)

Provide high security while maintaining safe and immediate egress.

LPS 1175 Glazed Steel Doors

Incorporate certified security glazing within the tested assembly.

Suitable where:

• Visibility is required
• Communal entrances
• Reception areas in higher-risk buildings

Glazing must be part of the LPS 1175 certification.

LPS 1175 Louvred Steel Doors

Reinforced ventilation panels designed to prevent unauthorised access through the louvre opening.

Used where:

• Secure airflow is required
• Plant or equipment rooms

The louvre configuration must be included within the tested certification.

LPS 1175 Fire Rated Steel Doors

Doors that combine security performance with fire resistance.

• Internal fire doors tested to BS EN 1634-1

Security and fire performance certified together where applicable

LPS 1175 Double Leaf Doors

Available for wider openings and main entrances.Security level depends on the tested configuration.

LPS 1175 steel doors can therefore be configured for standard access, emergency escape, ventilation, glazing, and fire resistance, provided the full assembly remains within the certified Level 1–4 test evidence.

LPS 1175 steel doors can be configured to meet operational and architectural requirements, provided all elements remain within the scope of the certified Level 1–4 test evidence. Because certification applies to the complete door set, hardware, glazing, and louvre options must match the tested specification.

Security Levels (1–4)

Doors can be specified to:

• Level 1 (A1) – Basic opportunist attack resistance
• Level 2 (B3) – Increased attack resistance
• Level 3 (C5) – Higher-grade protection
• Level 4 (D10) – Enhanced resistance for higher-risk environments

The required level will influence construction thickness, reinforcement, and hardware.

Door Configuration

• Single leaf doors
• Double leaf doors
• Made-to-measure sizing
• Side panels and overpanels (where certified)

Larger openings require reinforced frame systems within certified scope.

Locking and Hardware

Within certified configurations, options may include:

• Multi-point locking systems
• High-security cylinders
• Reinforced hinge systems
• Panic hardware (BS EN 1125)
• Emergency push pads (BS EN 179)

All hardware must be part of the tested LPS 1175 assembly.

Glazing Options

Security-rated glazing can be incorporated where tested.

• Laminated security glass
• Certified security glazing systems

Glazing size and type must align with the certified level.

Louvred Panels

Reinforced and security rated louvre systems can be included for secure ventilation.

The louvre design must be included within the certified configuration to maintain compliance.

Fire Rated Options

Where required, LPS 1175 doors can be combined with fire resistance:

• Internal fire doors tested to BS EN 1634-1

Security and fire performance certified together

Finish and Appearance

• Powder coated finishes
• Wide RAL colour range
• Internal/external colour matching
• Specialist coatings for harsh environments

LPS 1175 steel doors offer flexibility in configuration, glazing, ventilation, and hardware, while delivering independently tested graded security performance when installed exactly to the certified specification.

LPS 1175 steel doors are specified where graded, independently tested protection against forced entry is required. They are commonly used in environments where risk levels exceed standard residential security requirements.

Commercial Buildings

Installed in:

• Main entrances
• Service and rear access doors
• Secure storage areas
• High-value offices

Higher levels (3–4) are often specified where valuable assets are present.

Utilities and Infrastructure

Used for:

• Substations
• Water treatment facilities
• Telecom sites
• Energy centres

Security Levels 2–4 are commonly required for critical infrastructure protection.

Data Centres and IT Facilities

Specified to protect:

• Server rooms
• Network hubs
• Technical plant areas

Higher LPS levels provide increased resistance to deliberate attack.

Industrial and Manufacturing Sites

Installed at:

• Plant rooms
• Equipment enclosures
• Loading bays
• Secure compounds

Designed to withstand both forced entry and demanding environments.

High Risk Residential and Mixed Use Developments

Used in:

• Communal entrances
• Plant enclosures
• Restricted access areas

Level 1 or 2 doors may be specified where enhanced security is required beyond PAS 24.

Fire Compartment Areas (Where Combined)

LPS 1175 doors can also be combined with fire resistance, making them suitable for protected corridors and compartment walls where both security and fire performance are required.

LPS 1175 steel doors are selected wherever buildings require measurable, graded attack resistance, particularly in commercial, infrastructure, industrial, and higher risk environments.

LPS 1175 steel doors are engineered to provide graded, independently tested protection against forced entry, making them suitable for higher risk commercial, infrastructure, and industrial environments.

Graded Security Performance (Levels 1–4)

Tested by the Loss Prevention Certification Board (LPCB) to resist defined attack methods and toolkits. Secured By Design accreditation.

Benefit: Provides measurable, third party verified security performance aligned to the building’s risk profile.

Reinforced Steel Construction

Manufactured with strengthened steel leaves, frames, and hinge systems.

Benefit: High resistance to impact, forced entry, and vandalism, delivering long term durability.

Advanced Locking Systems

Typically fitted with:

• Multi point locking
• High security cylinders
• Reinforced strike plates

Benefit: Improved resistance to leverage and forced attack.

Certified Glazing Options

Available with security rated glazing tested as part of the assembly.

Benefit: Maintains visibility while preserving certified attack resistance.

Reinforced Louvred Options

Security rated ventilation panels available within certified configurations.

Benefit: Allows airflow without creating a security vulnerability.

Fire-Rated Configurations (Where Tested)

Can be combined with fire resistance tested to BS EN 1634-1.

Benefit: Delivers both compartmentation and high security within a single door system.

Emergency Exit Compatibility

Available with compliant panic hardware (BS EN 1125 / BS EN 179).

Benefit: Maintains safe and compliant escape routes while providing enhanced security.

Low Maintenance and Long Service Life

Heavy duty steel construction resists wear and environmental damage.

Benefit: Reduced long term maintenance costs in demanding environments.

Suitable for Higher Risk Environments

Designed for commercial, infrastructure, and industrial applications.

Benefit: Meets insurer and security consultant specifications where standard residential ratings are insufficient.

LPS 1175 steel doors provide certified, graded protection combined with durability, flexibility, and optional fire performance, offering a robust solution for buildings requiring enhanced, independently tested security.

LPS 1175 steel doors must comply with recognised security certification standards, and depending on their application, may also need to meet fire, escape, external product, and building regulation requirements.

LPS 1175 Security Certification

LPS 1175 is a security standard developed by the Loss Prevention Certification Board (LPCB).

• Provides graded security Levels 1–4
• Assesses resistance to defined attack methods and toolkits
• Certification applies to the complete door set (leaf, frame, locks, hinges, glazing, louvres, and hardware)
• Installation must follow certified details to maintain approval.

LPCB Approval and Listing

Certified doors are listed by LPCB and must:

• Be manufactured to approved specifications
• Be installed in accordance with manufacturer guidance
• Not be modified outside the tested configuration

Unauthorised changes can invalidate certification.

Fire Resistance (If Combined)

Where LPS 1175 doors are also fire rated:

• Internal fire doors must be tested to BS EN 1634-1
• Security and fire certification must apply to the same tested assembly
• Fire ratings may vary depending on specification.

Emergency Escape Compliance

If the door forms part of an escape route:

• Panic hardware must comply with BS EN 1125
• Emergency exit devices must comply with BS EN 179
• Security measures must not restrict immediate internal egress
• Life safety requirements take priority over security.

External Door Compliance

For externally installed LPS 1175 doors:

• Must comply with BS EN 14351-1
• CE and/or UKCA marking required
• Declaration of Performance (DoP) provided

Covers weather resistance, wind load, and air permeability.

Accessibility Requirements

Where installed on accessible routes, doors must align with:

• Approved Document M (Access to and Use of Buildings)

This may affect hardware selection and threshold design.

Installation Compliance

To maintain certification:

• Installation must match tested fixing detail
• Hardware substitutions are not permitted
• Glazing and louvre systems must match approved specification
• Frame fixings must be correctly installed into structural substrate

When properly specified and installed, LPS 1175 steel doors provide independently certified graded security performance while meeting applicable fire safety, escape, external product, and building regulation requirements.

LPS 1175 steel doors must be installed exactly in accordance with the certified test evidence to maintain their graded security rating (Levels 1–4). Any deviation from the approved specification can invalidate certification.

Installation Requirements

Install as a Complete Certified Door Set

LPS 1175 applies to the entire assembly, including:

• Steel door leaf
• Frame
• Locking system
• Hinges
• Glazing (if fitted)
• Louvres (if included)
• All hardware

Substituting components or altering the configuration will invalidate certification.

Structural Fixing

• Frame must be securely fixed into structural substrate (masonry, concrete, structural steel)
• Fixing centres must follow certified installation guidance
• Frame must be square, plumb, and level
• Packers must not compromise fixing strength

Improper fixing reduces attack resistance performance.

Locking and Hardware Alignment

• Multi point locking systems must align precisely
• Door must close and latch fully
• Cylinders must be correctly installed
• Strike plates must be securely fixed
• Incorrect alignment can significantly reduce security performance.

Glazing and Louvres (If Applicable)

• Must match the certified LPS 1175 configuration
• Security glazing must be installed using approved beads and fixings
• Louvred panels must not be modified
• Alterations can void the graded security level.

Emergency Exit Hardware (If Fitted)

Where panic or emergency hardware is installed:

• Must comply with BS EN 1125 or BS EN 179
• Internal egress must function immediately
• Security must not compromise life safety

Fire Rated Versions (If Applicable)

If combined with fire resistance:

• Installation must also comply with BS EN 1634-1
• Intumescent seals and fire-stopping must be correctly applied

Supply Only Considerations

If supplied without installation:

• Installer assumes responsibility for maintaining certification
• Installation must strictly follow manufacturer drawings
• Hardware substitutions are not permitted

Professional installation is strongly recommended for higher level security doors.

Maintenance Requirements

LPS 1175 doors are often installed in high-risk environments and require routine inspection to maintain performance.

Routine Inspection (Recommended Quarterly)

Check for:

• Smooth operation
• Secure hinge fixings
• Correct lock engagement
• Frame stability
• Seal condition
• Glazing security

Hardware Maintenance

• Lubricate locks and hinges
• Inspect multi point locking systems
• Check cylinder function
• Tighten fixings as required

External Maintenance

• Inspect weather seals
• Check for corrosion
• Maintain powder-coated finish
• Ensure drainage remains clear

Fire Door Maintenance (If Applicable)

• Inspect intumescent seals
• Confirm self-closing function
• Ensure no unauthorised modifications

When correctly installed and regularly maintained, LPS 1175 steel doors continue to provide certified graded security performance while maintaining compliance with fire, escape, and building regulation requirements.

(Indicative UK pricing – excludes VAT unless stated)

The cost of LPS 1175 steel doors depends primarily on the security level (1–4), configuration (personnel, emergency exit, glazed, louvred, fire-rated), and installation complexity. Higher levels require increased reinforcement, upgraded locking systems, and heavier construction.

LPS 1175 Level 1 (A1)

Suitable for lower-risk commercial and utility applications.

• Supply only: From £1,800 – £2,800
• Supplied and installed: From £3,200 – £5,000

LPS 1175 Level 2 (B3)

Increased resistance to more determined attack.

• Supply only: From £2,300 – £3,500
• Supplied and installed: From £3,800 – £6,000

LPS 1175 Level 3 (C5)

Higher-grade protection for infrastructure and higher-risk sites.

• Supply only: From £3,000 – £4,800
• Supplied and installed: From £4,800 – £8,000

LPS 1175 Level 4 (D10)

Enhanced attack resistance for critical or high-value environments.

• Supply only: From £4,000 – £6,500+
• Supplied and installed: From £6,500 – £10,000+

Double Leaf LPS 1175 Doors

For wider openings:

• Supply only: From £3,500 – £8,500+ (depending on level)
• Supplied and installed: From £6,000 – £12,000+

Fire-Rated LPS 1175 Doors (If Combined)

Where security and fire resistance are certified together:

• Add approximately £600 – £1,500+ depending on fire rating and specification

Glazing or Louvred Options

Security glazing:

• Typically £500 – £1,500+ depending on size and rating
• Reinforced louvre systems: Typically £400 – £1,200+

Must remain within certified configuration.

What Affects Final Pricing

• Security level (1–4)Single or double leaf
• Fire rating (if required)
• Glazing or ventilation panels
• Access control preparation
• Installation access and structural alterations

Getting an Accurate Quote

LPS 1175 certification applies to the complete tested door set, so correct specification is essential. A site survey is recommended to confirm opening sizes, required security level, fire rating (if applicable), and installation conditions to provide an accurate quotation.