A set of essentially identical floorboards each including a front face and a rear face extending in the horizontal plane, a core, and a surface layer, a mechanical locking system is arranged at least at two opposite edges for connecting a floorboard with an adjacent floorboard in a horizontal and a vertical direction, said mechanical locking system being configured for connecting the floorboard with the adjacent floorboard by vertical folding, wherein one of said opposite edges is provided with a horizontally extending protrusion at an upper edge, and wherein said protrusion is configured to overlap a surface groove at an upper edge of the other of said opposite edges, such that two connected and adjacent floorboards have upper overlapping edges.

Floor element of the type which, at least at two opposite edges, comprises coupling means enabling two of such floor elements to cooperate with each other at the respective edges, wherein the floor element comprises at least two components, as well as entity-forming means, which, starting from the aforementioned components, can form an entity including the components, wherein said components can adopt at least two mutual positions, whether or not by means of the disruption of the entity formed by said entity-forming means.

Floor element of the type which, at least at two opposite edges, comprises coupling means enabling two of such floor elements to cooperate with each other at the respective edges, wherein the floor element comprises at least two components, as well as entity-forming means, which, starting from the aforementioned components, can form an entity including the components, wherein said components can adopt at least two mutual positions, whether or not by means of the disruption of the entity formed by said entity-forming means.

Floor panels which are provided with a mechanical locking system including a displaceable tongue in a displacement groove. The tongue is moulded and provided with bendable protrusions. A building panel having an edge portion provided with a groove, in which a tongue formed as a separate part is received, wherein the tongue includes at least two bow shaped protrusions at a first long edge of the tongue, and wherein the protrusions are arranged bendable in the groove.