EN 356

Glass in building - Security glazing - Testing and classification of resistance against manual attack.

Alongside our Bullet Resistant products Architectural Armour can offer an alternative; Security Glass, Windows and other Products.  The BS EN356 standard specifies requirements and test methods for security glazing designed to resist actions of forced or manual attack or attack resistant.

To view the products that can incorporate EN 356, manual attack resistant glass, see the below links.

Stock items 

Attack Resistant Transaction Windows - 2 types of versatile Physical Attack Ticket / Cashiers Window with Natural Speech Path for internal use

All of the above can also be manufactured in bespoke sizes.

Bespoke items 

Security Counters and Screens - Physical, Ballistic or Blast Resistant Counters for any application to keep staff secure

Attack/Intruder Resistant Windows - EN356 rated attack resistant windows protecting against planned or surprise attacks.

Attack/Intruder Resistant Doors - LPS1175 rated doors for multi-purposes.  Manufactured bespoke to customers requirements.  

Lower Resistance Level

The test standards has two test parameters; higher and lower resistance.  The lower resistance sees glass undergo impact from steel balls dropped from differing heights in a triangular formation.  This test covers the glass rated from P1A to P5A.  P1A the balls are dropped from the lowest height, P5A 3 sets of 3 balls are dropped from a height of 9 metres.  

BS EN356 Drop Height (mm) Number of Strikes Impact Energy Per Stroke Glass Thickness (mm)
P1A 1500 3 in a Triangle 62J 6.8
P2A 3000 3 in a Triangle 123J 8.8
P3A 6000 3 in a Triangle 247J 9.1
P4A 9000 3 in a Triangle 370J 9.5
P5A 9000 3 x 3 in a Triangle 370J 10.3


Higher Resistance Level

The higher resistance level is tested with multiple strikes of a hammer and axe.  The glass is held in a frame and subjected to strikes in a certain area by a mechanical hammer and axe ensuring the force is controlled throughout.  This standard covers P6B to P8B.  These products are available in laminated all glass constructions or glass/polycarbonate/glass constructions giving you a range of thicknesses to choose from.

BS EN356 Sledgehammer & Axe Minimum Number of Blows Required Construction Glass Thickness (mm)
P6B 31 Glass/PVB 15
    Glass/Poly/Glass 10
P7B 51 Glass/PVB 28
    Glass/Poly/Glass 16
P8B 71 Glass/PVB 26
    Glass/Poly/Glass 18

The product can be provided as single laminated pane or incorporated into double glazed units (DGUs/IGUs) for use internally and externally.  They can offer an extra level of protection in domestic or commercial properties.

The EN356 glass is commonly used in Jewellery store applications, for use as front of store or display cases/windows.  The glass prevents smash and grab attempts from being successful; delaying the intruders attack giving the police vital minutes to respond.

We also utilise this glass in our SW1&2 Transaction Windows and our external transaction window,  similar to a BSW but incorporating EN356 glazing instead.

For more information or a quotation please contact our offices on 01981 257000 or email info@architecturalarmour.com.


     EN 356 Security Glazing to Manual Attack

To view or download the EN356 Data Sheet please click here 

For our full range of technical specifications please click on relevant headings below; 

 Other Attack Specifications

EN 1627   Pedestrian door-sets, windows, curtain walling, grilles and shutters - Burglar resistance - Requirements and classification

LPS 1270   Intruder Resistant Security Glazing -  Requirements & Testing Procedures 

LPS 1175 Requirements and testing procedures for the LPCB certification and listing of intruder resistant building components, strongpoints, security enclosures and free-standing barriers

 Ballistic Technical Specifications

EN 1063               Glass in Building - Security Glazing - Testing and Classification of Resistance Against Bullet Attack

UL 752                   Standard for Bullet-Resisting Equipment

BS 5051                Bullet-resistant glazing - Part 1:  for interior use- Part 2: for Exterior use

NIJ 0108.01      US National Institute of Justice Standard-Test and Certification for Ballistic Resistant Materials

EN 1522/3          Windows, doors, shutters and blinds - Bullet resistance - Requirements and classification /Test method

Blast Specifications

GSA-TS01:2003     Standard Test Method for Glazing and Window Systems Subject to Dynamic Overpressure Loadings

EN 13541                   Glass in building - Security glazing - Testing and classification of resistance against explosion pressure 

EN 13123-2               Windows, doors and shutters - Explosion resistance - Requirements and classification

ISO 16933:2007  Glass in Building -- Explosion-Resistant Security Glazing -- Test & Classification for Arena Air-Blast Loading

Fire Specifications

UL 10C           Positive Fire Pressure Tests of Door Assemblies 

EN 1363-1    Fire resistance tests –Part 1: General Requirements

EN 1364-1     Fire resistance tests for non-load-bearing elements – Part 1: Walls

BS 476 Part 22     Fire tests on building materials and structures

EN 1634-1   Fire resistance and smoke control tests for door and shutter assemblies, openable windows and elements of building hardware 


This is an extract not a full report and Architectural Armour Ltd accepts no liability for any loss, direct, indirect or consequential damage incurred by using this information, to the fullest extent permitted by law. You should make your own judgement as regards use of this document and seek out the full test standards.

Latest News

Split Height Transaction Window Duo 

Using experience on previous projects and customers requirements we have designed a split height transaction window offering standing and DDA access to reception and data centre environments.

2 Position Screen


For more information and pricing please contact our office on info@architecturalarmour.com or +44(0)1981 257000



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Increased Stock for Express Delivery

We have increased our range of stock transaction windows to six units , ready for express dispatch.

Our range of transaction windows include, physical attack resistant and bullet resistant internal and external models. Please see below an outline of our products.

Architectural Armour are offering standard stock items and bespoke orders to suit.  Please contact us on +44(0) 1981 257000 



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