The profile-rail system (1) serves for bridging expansion joints. It is held by means of undercut tongue and groove profilings (3, 4) such that it can be held in a click-in arrangement against flooring elements. In order to obtain a width adjustment and an adjustment to movements of the floor covering, the profile-rail system (1) has at least two telescopable profiled rails (5, 6). These profiled rails (5, 6) can be held against the flooring elements (2) exclusively on the end face.