Protection Levels

Security Door Knowledge

Modern security doors are designed to protect residential properties against forced entry, burglary attempts and targeted attacks. Understanding how these systems are engineered and tested helps property owners, architects and developers choose the correct level of protection for their property.

Across Europe, high-security doors are independently tested under the EN 1627 burglary resistance standard. These tests determine the Resistance Class rating of a door system, commonly referred to as RC3, RC4 and RC6.

The guides below explain how security doors are engineered, how burglars typically attempt to gain entry and why increasing the resistance time of an entrance door significantly improves residential security. You will also find information on safe rooms, panic rooms and ballistic security doors designed for high-value residential properties.

Security Door Guides

RC3 RC4 RC6


Security Door Ratings

Learn how European burglary resistance standards classify security doors and determine protection levels.

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How Security Doors Are Engineered

Discover how reinforced steel construction and multi-point locking systems protect modern homes.

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Security Doors vs Standard Doors

Understand the differences between standard residential doors and engineered security doors.

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How Burglars Break Into Homes

Explore common forced-entry techniques and how security doors are designed to prevent them.

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How Long Does It Take to Break Into a Door

See how resistance ratings translate into real-world protection and attack resistance time.

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Why Properties Need Security Doors

Learn why high-value villas and apartments increasingly require advanced security doors.

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Safe Rooms and Panic Rooms

Discover how safe rooms and panic rooms provide additional protection inside high-value homes.

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Specifying Security Doors for Luxury Homes

A practical guide for architects, developers and property owners selecting the correct level of security protection.

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FB4 FB6


Ballistic Security Doors

Understand ballistic protection standards and how armoured doors protect against firearm threats.

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