Abstract: An arrangement which comprises: first and second panel-shaped pieces of flooring for joining together, said pieces resting on a sub-floor and having profiles along mutually meeting edge portions which, on the first piece, consist of a groove and a projection located thereunder, and on the second piece a tongue insertible in the groove, and also a recess accommodating the projection; wherein said projection, at its outer, free edge, is of greater thickness transversely of the plane of extent of the flooring piece than at its inner edge connected with remaining parts of the piece; and wherein the underside of the projection lies flush with the remainder of the underside of the flooring piece.

Abstract: An arrangement which comprises: first and second panel-shaped pieces of flooring for joining together, said pieces resting on a sub-floor and having profiles along mutually meeting edge portions which, on the first piece, consist of a groove and a projection located thereunder, and on the second piece a tongue insertible in the groove, and also a recess accommodating the projection; wherein said projection, at its outer, free edge, is of greater thickness transversely of the plane of extent of the flooring piece than at its inner edge connected with remaining parts of the piece; and wherein the underside of the projection lies flush with the remainder of the underside of the flooring piece.