The invention relates to an assembly (1) formed of at least two wall elements (2, 6), in which the wall elements (2, 6) comprise vertically and horizontally arranged reinforcing elements (10, 11) and the wall elements (2, 6) are either movably connected to one another or are present separately and can be transposed into a space-saving arrangement within a common region (14), wherein, in this arrangement, and according to a first embodiment, either the vertical reinforcing elements (10) of the wall element (6) are located in at least one interspace (12) which is formed by vertical reinforcing elements (10) of the wall element (2), or wherein, according to a second embodiment, the horizontal reinforcing elements (11) of the wall element (6) are located in at least one interspace (13) which is formed by horizontal reinforcing elements (11) of the wall element (2). The invention is distinguished in that, in the space-saving arrangement and within the common region (14) according to the first embodiment, the horizontally extending reinforcing elements (11) of the at least one wall element (6) are at the same time also completely or partially located in interspaces (13) which are formed on the wall element (2) by horizontal reinforcing elements (11), or in that, according to the second embodiment, the vertically arranged reinforcing elements (10) of the at least one wall element (6) are at the same time also completely or partially located in interspaces (12) which are formed on the wall element (2) by vertical reinforcing elements (10), and in that, in both embodiments, the interspaces (12, 13), when viewed across the thickness thereof, are arranged with an offset.