Maximum security locations and environments.

Defender Xtreme B3 LPS 1175 High-Security Steel Doorset

Our ultimate steel security door specification, third-party tested and accredited by BRE to meet the stringent requirements of LPCB LPS 1175 B3 (SR2) Issue 8 scheme.

Available in a wide range of configurations, including inward opening, with vision panels, louvres, side panels, over panels, a choice of finishes, and in any colour, the Defender Xtreme offers high security and design flexibility to suit your scheme.

The Defender Xtreme is available with a choice of upgrades to enhance fire, thermal, and acoustic performance.

Premium design and manufacture by Metador

• The door leaf is manufactured from two steel skins, folded and mechanically fixed to form a strong and rigid door. 
• Filled with mineral wool and technical strengtheners to support hardware and resist attack.
• Anti-jemmy flange incorporated to the leading edge for excellent jemmy resistance.
• Tested with a wide range of configurations, hardware, and glazing options to suit most emergency exit and personnel door requirements. 
• Solid over panels can be incorporated at some security levels.
• For optimum weather, thermal, and acoustic performance a durable tubular silicone rubber perimeter seal is bonded into the frame.
• DDA compliant threshold.
• Third-party-tested and accredited.

Customised to suit your scheme:

• Extend the structural opening with side panels and over panels.
• Vision panel options available.
• Multipoint locking options available, including mechanically and electronically controlled.
• Good selection of hardware options to choose from.
• Selection of finishes, including woodgrain and stainless steel.
• Marine-grade finishes available for added weather protection and durability.
• Available in any RAL colour.
• Bespoke, made to order, and available in any quantity.
• Single doorset max width of 1490mm & 2490mm high
• Double doorset max width of 2890mm & 2490mm high

Upgrade your doorset

• Boost thermal performance with Metador Thermaguard technology. Achieve down to 1.5W/m²K U value.
• Enhance acoustic performance with Metador Soundguard reducing sound transmittance up to 36dB Rw.