Requirements and Test

The test for burglar retardant door sets according to the German standard DIN ENV 1627 consist of 3 parts : 

  1. Static Stress 
    A pressure of 3 to 10 kN is produced by a hydraulic thruster. The maximum permissible excursion must not be exceeded. 
  2. Dynamic Stress 
    A sandbag of 30 kg with a pendulum length of 1500mm and a fall of 800mm is thrown against the door blank centrally and near the hinges and the lock. The door must not be as damaged as to allow to break in.
  3. Tool Stress 
    Based on the results of the static and dynamic tests the test institute decides wether a tool stress test has to be performed.

German Test Institutes

PTE Rosenheim GmbH
83026 Rosenheim
phone: 08031-261-00

Institut für Holztechnologie Dresden GmbH
01217 Dresden
phone: 0351-4662-281

Mobile test facilities are available in some institutes, too.

ClassesET 1/ WK2ET 2/ WK3ET 3/ WK4
Static stress
max. permissible excursion
Dynamic stress30 kg sandbag30 kg sandbag30 kg sandbag
Tool stresswithout or only with
very simple tools
additionally simple lever toolsmainly tools : 
wedge, lever and striking tools

Possible Constructions

The burglar retardant quality is mainly achieved by the constructive frame elements. 
Elements of special importance :

  • wall frame ⇒ material, construction
  • door frame ⇒ material, construction
  • fittings ⇒ construction
  • skin ⇒ material, thickness 
  • core ⇒ full-size, pressure resistant


Full-size cores of tubular or solid SAUERLAND board meet the requirements of the classes ET1 and ET2.