German supermarket REWE Group's new full-range national warehouse covers 53,000 square metres and is situated in the north of Berlin. About 350 employees ensure that more than 355 REWE, nahkauf, Karstadt and Coop supermarkets — along with Hit self-service stores — are supplied with around 10,000 different items. The building is protected by a CLIQ® locking system which was planned and installed by the specialist security company Guett-Dern GmbH, based in Cologne.