Abstract: To connect the mutually contacting faces of two sheets, in particular counter tops, in a simple manner such that the top surfaces lie in a common plane, the invention provides an arrangement which consists of two fitting parts (7, 12) each connected to one sheet (1, 2). The first fitting part (7) is provided with a recess (9) open to the bottom whose limiting wall (10) facing the other sheet (2) has a slot open toward the bottom. The fitting part (12) fastened to the other sheet (2) is provided with a threaded hole into which a screw (17) is inserted. The screw (17) is inserted into the slot such that the head is accommodated by the recess (9) and is supported by the limiting wall (10) accommodating the slot (11). To adjust the height, adjustment screws (12) are provided in flanges (15) of fitting part (12) which interact with the base plate of fitting part (7).

Abstract: The invention relates to flat and/or elongated building components (1, 2), preferably wooden, and a structure connecting these components (1, 2) in accordance with the groove and tongue principle. Two legs (3, 4) forming a groove (5) branch off from a front face of one of the components (1), and a tongue (6) branching off from a front face of the other component (2) can be inserted into the groove (5). Locking elements (7, 8) hold the components (1, 2) in an assembled position. In accordance with the invention, the locking elements are configured as triangular projections (7) and cavities (8) in facing or adjacent surfaces of the groove and/or tongue.