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Standards and testing

What is a security screen?

Not every screen that looks like a security screen actually is a security screen. There are three grades of screen - security screens, fall prevention screens and barrier screens. 

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Security screen

Security screens must meet standards for both construction and installation in order to qualify as security screens, as well as passing stringent tests.

Keep your cat safe with Guardian fall prevention screens

Fall prevention screens

Fall prevention screens do not meet the requirements of a security screen, but must comply with fall prevention standards to ensure they will withstand outward forces. 

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Barrier screens

Barrier screens include lightweight stainless steel mesh and steel doors that do not meet security or fall prevention standards. They are useful if you want something stronger than flyscreen, for longevity or to keep pets in. 

What standards apply to security screens?

Security screens must meet standards for both construction and installation in order to qualify as security screens, as well as passing stringent tests.

  • AS5039.1 sets out the performance requirements for all types of hinged and sliding security doors and security windows

  • AS5039.2 (not yet released) sets out the requirements for installation

  • AS5039.3 sets out the tests that security screens must meet. 


Importance of correct installation

Security screens are usually installed into an existing door or window frame. Each part must be strong if the whole system is to be secure - the actual security screen, the locks and hardware, any adaptors or fixing components, and the original frame itself. 

Occasionally the original door or window frame will not be strong enough to meet the standards of a security system. When this is the case, we will of course let you know, and make the whole system as strong and secure as it can possibly be. 

Performance requirements for security screens

There are some basic performance requirements that all security screens must meet. 


Aperture size

There are now separate requirements for three types of screen infill:

  • stainless steel mesh or perforated aluminium (called small aperture in the standards) - these will stop most insects and must not allow a small aperture probe to pass through (3mm diameter)

  • diamond grille mesh and some lasercut designs (medium aperture) - these must prevent a human arm being passed through, must not have a gap more than 90mm in any direction, and must not allow a probe (65mm x 25mm x 15mm) to pass through

  • bars or grilles and some lasercut designs (large aperture) - these will prevent a human body passing through - bars must be less than 150mm apart or spaces must have an area less than 450cm2.


  • Locks must have a 5 pin cylinder, and meet requirements for durability, physical security and keying security.  

  • For medium and large aperture screens, the design must prevent unlocking from the outside by reaching through the screen. 


All security screens must have a label including the manufacturer's name, brand name, security level and compliance with the standard. 

Testing requirements for security screens

In addition, security screens must pass a series of tests performed by dragons. 🐉

No, not really! But we can use dragons to demonstrate the performance tests for security screens.

No dragons were harmed in the making of these videos :)

tests have to be undertaken in sequence**

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Dynamic impact test

The dynamic impact test is designed to simulate an intruder trying to kick through a security door window. To pass the test, a screen must withstand five impacts of 

  • 100 joules, to meet Security Level 100 (SL100)

  • 200 joules, to meet Security Level 200 (SL200).

SL200 is new in the updated 2023 version of the Australian Standards. It was added based on updated research that found the force from different kicks varied from around 50 joules to over 300 joules.

Knife shear test

The knife shear test is only required for small aperture screens - stainless steel mesh and perforated aluminium. 

The knife shear test determines the resistance of the security mesh to an attack from a heavy duty knife. The knife strikes the mesh a number of times with a constant force. If the knife penetrates the mesh with a cut longer than 150mm, the mesh does not pass.


Pull test

The pull test is only required for diamond grille and some lasercut doors, where the size of the aperture allows the screen to be grabbed. After the pull force has been applied, the screen must not separate from the door or window frame, and the infill material (e.g. diamond grille) must not deform to allow a probe to be inserted. 

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Jemmy test

The jemmy test is designed to simulate an intruder using a lever to get past the security door or window. The test is performed with a large screwdriver at all locking, hinging and fastening points. The force applied is up to 450 N (45 kg) for 20 seconds – way beyond the capability of most potential intruders

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Corrosion test

If a screen includes different metals (for example, an aluminium frame and stainless steel mesh), the metals must be isolated. Screen systems should pass the neutral salt spray test for 240 hours. If different materials are isolated, the screen system can be deemed to satisfy if all the materials meet the requirements for painting and coating to the appropriate standards. 

Bushfire rating

The Australian Standard for construction in bushfire zones (AS 3959) requires that openable windows are screened with corrosion-resistant steel, bronze or aluminium mesh with an opening less than 2mm x 2mm. 

All our stainless steel mesh and aluminium security screens meet this requirement and are approved up to Bushfire Attack Level 29 (BAL-29). ForceField has been tested and approved up to extreme level BAL-FZ (fire zone). 

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Cyclone testing

Cyclone testing is not a requirement for buildings in Brisbane, but it is reassuring to know that all our stainless steel security screens easily pass the missile test. 

Our screens

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