A floor covering element includes coupling means at two opposite edges. The floor covering element includes one or a combination of two or more of the following features: the top surface and/or the bottom surface is, at the respective edge, provided with a lowered surface, such as a bevel; the coupling means comprise a tongue with one or more elastically bendable portions; the coupling means are configured to allow for a closed connection at only one of the top and bottom surfaces; the coupling means allow for an assembly and/or disassembly by angling in, respectively out, upwardly and downwardly; the groove and/or the tongue are formed by a separate insert; the coupling means have a varying geometry along the respective edge; the floor covering element has a decorative surface at the top surface and at the bottom surface.

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.

A panel, which is rectangular and has long and short edges, includes a coupling part on each long edge and on each short edge, which allows coupling of the panel to another such panel.

Floorboards which have a core and a surface layer and are provided with decorative joint edges which are formed by removing the surface layer. A method for making a floorboard, or a floor element that is to be divided into at least two floorboards, the method including making a core from a sheet shaped material, from which a part of a locking system for vertical locking of the floorboards is to be formed, impregnating and/or staining the core surface with a substance at least in portions which in the completed floorboard will constitute a joint edge of the completed floorboard, and arranging an surface layer on the core surface.

Building panels, especially floor panels are shown, which are provided with a locking system that is configured to lock the adjacent edges by angling and that have a tongue and a strip on the same edge, and a method to divide a board and produce such building panels. A method for dividing a floor element, into a first floor panel and a second floor panel, said floor element including a core provided with a decorative surface layer and a balancing layer, wherein the method includes the step of forming, through the balancing layer or the decorative surface layer, a second groove by displacing the floor element past a fixed tool.

A flooring assembly comprising a plurality of flooring units each unit comprising a first stability core layer having a top surface, a bottom surface and a plurality of edge surfaces, at least two of the edge surfaces having an interlocking mechanism for attachment to the edge surfaces of the first stability core of adjacent flooring units; a sound attenuating acoustic layer attached to the top surface of the first stability core layer, a second stability core layer attached to the top surface of the acoustic layer and having a top surface, a bottom surface and a plurality of edge surfaces, at least two of the edge surfaces having an interlocking mechanism for attachment to the edge surfaces of the second stability core of adjacent flooring units; and a finish layer attached to the top surface of the second stability core layer, wherein (1) each of the layers is polygonal, and the assembly of flooring units is attachable to a surface of a structure.

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.

Building panels, especially floor panels are shown, which are provided with a locking system that is configured to lock the adjacent edges by angling and that have a tongue and a strip on the same edge, and a method to divide a board and produce such building panels. A method for dividing a floor element, into a first floor panel and a second floor panel, said floor element including a core provided with a decorative surface layer and a balancing layer, wherein the method includes the step of forming, through the balancing layer or the decorative surface layer, a second groove by displacing the floor element past a fixed tool.

Floor panels are shown, which are provided with a mechanical locking system comprising tongue and grooves provided with protrusions and cavities which are displaceable in relation to each other and configured such that the protrusions can obtain a vertically unlocked position where they match the cavities and a vertically locked position where the protrusions overlap each other.

Building panels, especially floor panels are shown, which are provided with a locking system that is configured to lock the adjacent edges by angling and that have a tongue and a strip on the same edge, and a method to divide a board and produce such building panels. A method for dividing a floor element, into a first floor panel and a second floor panel, said floor element including a core provided with a decorative surface layer and a balancing layer, wherein the method includes the step of forming, through the balancing layer or the decorative surface layer, a second groove by displacing the floor element past a fixed tool.