To ensure that a door is secure, the use of the best materials and a reliable locking system are of prime importance. Special sheets of high-quality metal with high wall thicknesses withstand the application of extreme force such as attempts to break or drill them open. This is important for certification to RC 2 standard.
The standard equipment also includes a three-point hook bolt lock equipped with an upper and lower claw bolt. In addition, the two security pins fitted as standard in the upper and lower part of the hinge side prevent the door leaf being pried out of the frame.
And of course, a range of additional security components is available on request. You can also find comprehensive information in our main catalogue in the Download area.
Groke is a partner of the K-EINBRUCH initiative
The K-EINBRUCH publicity campaign running across Germany has been put into motion by the police service with collaboration partners from the business world. The initiative started in 2012 based on an ongoing rise in residential break-in figures, and follows the objective "Raising awareness of break-in protection in the population."
For private residences, the police service recommends front doors at least of resistance class RC 2.
To ensure that the doors manufactured are actually of the same quality level as the sample door tested, manufacturing is subject to ongoing third party monitoring with regular verification tests. (DIN CERTCO)
Resistance class RC 2
Opportunistic burglars use screwdrivers, pliers and wedges to break into the closed and locked component within 3 minutes. Doors of this resistance class offer protection against forced entry for this time.