A locking arrangement comprising - (i.) a panel (10, 12) with - two parallel side faces (76, 78) delimited by a straight edge of the panel, and - a locking groove provided in one of the side faces and parallel with the straight edge and a first direction; - (ii.) an edge strip (24, 26) having - opposite side walls (58, 60) and a bottom wall which constitute an open groove, in which open groove the straight edge of the panel is installed, and - a first form provided in one of the side walls; and - (iii.) a locking element having two side faces (50, 52) and being inserted in the open groove of the edge strip (24, 26), the locking element being placed at least partly or entirely between the panel (10, 12) and one of the side walls of the edge strip, - wherein the locking element comprises: - a second form provided in one of the side faces of the locking element, the second form matching with and being placed against the first form of the edge strip, the second form being configured to prevent the locking element from detaching from the edge strip (24, 26) and from moving in the second direction; characterized in that the locking element further comprises: - a protrusion formed in one of the side faces of the locking element and inserted in the locking groove of the panel, the protrusion being configured to prevent the panel (10, 12) from detaching from the edge strip (24, 26) and from moving in a second direction which is transverse to the first direction. - (i.) a panel (10, 12) with - two parallel side faces (76, 78) delimited by a straight edge of the panel, and - a locking groove provided in one of the side faces and parallel with the straight edge and a first direction; - two parallel side faces (76, 78) delimited by a straight edge of the panel, and - a locking groove provided in one of the side faces and parallel with the straight edge and a first direction; - (ii.) an edge strip (24, 26) having - opposite side walls (58, 60) and a bottom wall which constitute an open groove, in which open groove the straight edge of the panel is installed, and - a first form provided in one of the side walls; and - opposite side walls (58, 60) and a bottom wall which constitute an open groove, in which open groove the straight edge of the panel is installed, and - a first form provided in one of the side walls; and - (iii.) a locking element having two side faces (50, 52) and being inserted in the open groove of the edge strip (24, 26), the locking element being placed at least partly or entirely between the panel (10, 12) and one of the side walls of the edge strip, - wherein the locking element comprises: - a second form provided in one of the side faces of the locking element, the second form matching with and being placed against the first form of the edge strip, the second form being configured to prevent the locking element from detaching from the edge strip (24, 26) and from moving in the second direction; - a second form provided in one of the side faces of the locking element, the second form matching with and being placed against the first form of the edge strip, the second form being configured to prevent the locking element from detaching from the edge strip (24, 26) and from moving in the second direction; - a protrusion formed in one of the side faces of the locking element and inserted in the locking groove of the panel, the protrusion being configured to prevent the panel (10, 12) from detaching from the edge strip (24, 26) and from moving in a second direction which is transverse to the first direction.