Abstract: A panel, such as a floor panel, including a core, an optional upper arrangement, and an optional lower arrangement. One or more of the core, the upper arrangement and the lower arrangement includes a mineral-based layer, preferably including magnesium oxide. One or more of the mineral-based layers includes reinforcement fibres embedded in a mineral-based matrix, preferably including magnesium oxide. The fibres are configured to increase the tensile strength of the mineral-based layer.

Abstract: Floorboards provided with a mechanical locking system including a locking strip protruding from a first edge of a first floorboard. The locking strip is provided with a locking element configured to cooperate with a locking groove at a lower side of a second edge of a second floorboard for locking the first edge and the second edge in a horizontal direction. The first edge and the second edge are configured to be assembled by a vertical downward motion of the second edge towards the first edge. The second edge is provided with a calibrating groove adjacent the locking groove. Also, a method for producing a mechanical locking system.

Abstract: A mineral-based panel including a core, wherein the panel includes a mechanical locking system at respective opposite first and second edges, for assembling a first panel in an assembled position with an adjacent second panel by means of a folding displacement and/or a vertical displacement of the adjacent panels; the first edge including a locking strip projecting beyond a vertical plane and a locking element projecting from the locking strip; the second edge including a downwardly open locking groove configured to receive the locking element by for horizontal locking of the adjacent panels, wherein a first pair of horizontal locking surfaces includes a first locking surface provided by the locking element and a second locking surface provided by the locking groove. The locking system has play between the first locking surface and the second locking surface during assembling of the first and second panel by means of said displacement.

Abstract: A set comprising a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel is disclosed. The first panel includes a first edge surface and a first panel surface and the second panel includes a second edge surface and a second panel surface. The mechanical locking device includes an insertion groove at the first edge surface, wherein the insertion groove has a first displacement surface and an opposite second displacement surface, a bottom surface and a depth direction. The insertion groove includes a flexible tongue, and an edge tongue including a tongue groove, wherein the flexible tongue is configured to cooperate with the tongue groove for locking of the first panel to the second panel, and the first and the second displacement surface of the insertion groove are converging.

Abstract: A set of panels including a first panel and a second panel. A first edge of the first panel and a second edge of the second are configured to be locked together and assembled by a vertical displacement of the second edge relative the first edge. The first edge includes a locking element configured to cooperate with a locking groove at the second edge for locking in a horizontal and in the vertical direction. The first edge includes a tongue configured to cooperate with a tongue groove at the second edge for locking in a vertical direction. An upper part of the first edge includes a first guiding surface and a lower edge of the lower lip includes a second guiding surface. An upper part of the locking element includes a third guiding surface and a lower edge of the locking groove includes a fourth guiding surface.

Abstract: A set of panels including first and second panels. The first and second panels have a first, second and third edge. The first edge of the first panel is configured to be able to be locked together with both the second edge and the third edge of the second panel. The first edge includes a first locking element configured to be able to cooperate with a first locking groove at the second edge and a second locking groove at the third edge for locking in a horizontal direction. The first edge includes a tongue groove configured to cooperate with a tongue at the second edge and a tongue at the third edge for locking in a vertical direction. The first locking element includes a first locking surface configured to cooperate with a second locking surface on the first locking groove, for locking in the horizontal and the vertical direction.

Abstract: A panel, such as a floor panel, including a core, an optional upper arrangement and an optional lower arrangement. One or more of the core, the upper arrangement and the lower arrangement includes a mineral-based layer, preferably including magnesium oxide. One or more of the mineral-based layers includes reinforcement fibres embedded in a mineral-based matrix, preferably including magnesium oxide. The fibres are configured to increase the tensile strength of the mineral-based layer.

Abstract: A set of essentially identical panels, such as building panels, provided with a mechanical locking system including a displaceable tongue, which is arranged in a displacement groove with a first opening at a first edge of a first panel. The displaceable tongue is configured to cooperate with a first tongue groove, with a second opening at a second edge of an adjacent second panel, for vertical locking of the first and the second edge. The height of the first opening is greater than a second height of the second opening.

Abstract: A set of panels includes first and second panels, and a mechanical locking device for locking by vertical relative displacement of the panels. A locking strip extends from a first edge of the first panel in a direction parallel to first and second panel surfaces of the first panel. The locking strip includes a locking element configured to cooperate with a locking groove at a second edge of the second panel for locking in a direction parallel to the first panel surface. Opposite edges respectively include cooperating tongue and tongue groove for vertical locking. The locking strip includes a flexing groove extending from the second locking strip surface into the locking strip, to increase a flexibility of the locking strip during the assembly.

Abstract: A floor panel assembly including a first and a second panel. A first edge portion of the first panel includes an upwardly extending locking element and a second edge portion of the second panel includes a downwardly open locking groove configured to cooperate with the locking element for horizontally locking the first and second edge portions to each other. The floor panel assembly further includes a connecting device configured to be at least partially arranged in the locking groove in a locked state of the first and second edge portions. The connecting device includes a positioning member configured to extend along a third edge portion of the first panel in the locked state, wherein the first and third edge portions join each other at a corner portion of the first panel. Also, a corresponding connecting device.

Abstract: A set including a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel, the first panel includes a first edge surface and a first panel surface, the second panel includes a second panel surface, the first edge surface facing the second panel surface in a locked position of the first and the second panel, the mechanical locking device includes a panel groove at a surface of the second panel, a flexible tongue positioned in the panel groove, a rod-shaped element at the first edge surface and an insertion groove at the second panel surface extending from the second panel surface to the panel groove, the rod-shaped element having a first part at a first end, a second part at a second end and a recess in the second part, and a third part located between the first and second part.

Abstract: A set of panels includes first and second panels, and a mechanical locking device for locking by vertical relative displacement of the panels. A locking strip extends from a first edge of the first panel in a direction parallel to first and second panel surfaces of the first panel. The locking strip includes a locking element configured to cooperate with a locking groove at a second edge of the second panel for locking in a direction parallel to the first panel surface. Opposite edges respectively include cooperating tongue and tongue groove for vertical locking. The locking strip includes a flexing groove extending from the second locking strip surface into the locking strip, to increase a flexibility of the locking strip during the assembly.

Abstract: A set of building panels, each building panel has a decorative surface and a mechanical locking device for horizontal and vertical locking of similar or essentially identical building panels in an assembled position. An upper edge portion of a side edge of a first building panel and an upper edge portion of a side edge of a second building panel are, in the assembled position, juxtaposed to form a joint seal. The mechanical locking device includes a locking surface at the upper edge portion of the side edge of the first building panel configured to cooperate with a locking surface at the upper edge portion of the side edge of the second building panel. The two locking surfaces are configured to lock the side edge of the first building panel and the side edge of the second building panel in a direction parallel to the extension of the decorative surface.

Abstract: Floorboards provided with a mechanical locking system including a locking strip protruding from a first edge of a first floorboard. The locking strip is provided with a locking element configured to cooperate with a locking groove at a lower side of a second edge of a second floorboard for locking the first edge and the second edge in a horizontal direction. The first edge and the second edge are configured to be assembled by a vertical downward motion of the second edge towards the first edge. The second edge is provided with a calibrating groove adjacent the locking groove. Also, a method for producing a mechanical locking system.

Abstract: A set including a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel, wherein the first panel includes a first edge surface and a first panel surface, the second panel includes a second edge surface and a second panel surface, the first edge surface is facing the second panel surface in a locked position of the first and the second panel, the mechanical locking device includes an edge groove at the second edge surface, a flexible tongue positioned in the edge groove, a rod-shaped element at the first edge surface and an insertion groove at the second panel surface extending from the second panel surface to the edge groove, the rod-shaped element is configured to be inserted into the insertion groove and the rod-shaped element includes a recess.

Abstract: A set of building panels, such as floor or wall panels, having a mechanical locking device at opposite first and second edge portions, such as short edges, configured for horizontal locking of similar or essentially identical panels in an assembled position by means of displacement in an engagement direction, such as a vertical direction, of the second edge portion of a second panel relative the first edge portion of an adjacent first panel. The second edge portion has a locking groove configured to receive a locking element of the first edge portion of an adjacent first panel by means of the displacement. An outer portion of the locking element, such as in a horizontal direction transverse the first edge portion, is configured to cooperate with an inner portion of the locking groove for positioning, such as horizontal positioning, respective upper edge portions of the first and second edge portions during assembling.

Abstract: A set of panels including a first panel with a first main plane and a second panel with a second main plane. The first and the second panel are provided with a mechanical locking device for locking a first edge of the first panel to a second edge of the second panel at a junction plane, wherein the first main plane is essentially perpendicular to the second main plane and the junction plane is extending between the first main plane and the second main plane. The first edge includes an edge tongue that extends from the junction plane. The second edge includes an edge groove at the junction plane. The edge tongue is configured to cooperate with the edge groove for locking together the first and the second edges in a first direction which is perpendicular to the first main plane. The edge tongue includes a tongue groove.

Abstract: A building panel, such as a floor panel or wall panel, has a first mechanical locking device at a respective first edge 11 and an opposite second edge, such as long edges, for horizontal and vertical locking of similar or essentially identical building panels in an assembled position. The building panel further has a second mechanical locking device at a respective third edge and an opposite fourth edge for horizontal and vertical locking of similar building panels or essentially identical building panels in an assembled position. The first mechanical locking device includes, at the first edge, a tongue groove 111 configured to receive a first locking tongue at the second edge.

Abstract: A set including a first panel, a second panel and a mechanical locking device for locking the first panel to the second panel, wherein the first panel includes a first edge surface and a first panel surface, the second panel includes a second edge surface and a second panel surface, the first edge surface is facing the second panel surface in a locked position of the first and the second panel, the mechanical locking device includes an edge groove at the second edge surface, a flexible tongue positioned in the edge groove, a rod-shaped element at the first edge surface and an insertion groove at the second panel surface extending from the second panel surface to the edge groove, the rod-shaped element is configured to be inserted into the insertion groove and the rod-shaped element includes a recess.

Abstract: A set of panels including a first panel with a first main plane and a second panel with a second main plane. The first and the second panel are provided with a mechanical locking device for locking a first edge of the first panel to a second edge of the second panel at a junction plane, wherein the first main plane is essentially perpendicular to the second main plane and the junction plane is extending between the first main plane and the second main plane. The first edge includes an edge tongue that extends from the junction plane. The second edge includes an edge groove at the junction plane. The edge tongue is configured to cooperate with the edge groove for locking together the first and the second edges in a first direction which is perpendicular to the first main plane. The edge tongue includes a tongue groove.