Building panels, such as a floor panels or wall panels. The panels include a first mechanical locking system at respective parallel and opposite third and fourth edges, such as long edges, configured to cooperate for horizontal and vertical locking between two adjacent building panels, preferably by means of a folding motion. The panels further include a second locking system at respective parallel and opposite first and second edges, such as short edges, configured to cooperate for horizontal and vertical locking of two adjacent building panels. An upper edge portion of one of the third edge or fourth edge, preferably the third edge, includes a first lower lip portion configured to cooperate with a first upper lip portion of an upper edge portion of the other of the third and fourth edge of an adjacent panel when the third and fourth edges are arranged in locking engagement.

A method and device for managing and separating a tongue from a tongue blank, including cutting a first edge of a tongue from the tongue blank by rotating a tool which includes a protruding part, and displacing the tongue by the protruding part to a tongue queue. The method and device may include a second tool for cutting a second edge of the tongue from the tongue blank.

A set of panels including first and second panels. The first and second panels respectively include first and second edges. The first edge includes a locking strip with a locking element configured to cooperate with a locking groove at the second edge for locking the first edge to the second edge. The locking element includes a first locking surface at a first angle from a plane parallel to the first panel surface and the locking groove includes a second locking surface at a second angle from a plane parallel to the third panel surface. The first angle is different from the second angle such that the first locking surface converges towards the second locking surface at a cooperation part in a locked position. The first locking surface cooperates with the second locking surface at the cooperation part.

A panel includes a top side, a bottom side and a first edge extending between the top and bottom side and having a first coupling part; and a second edge extending between the top and bottom side and having a second coupling part. The coupling parts make it possible to produce a horizontal and vertical lock between two such panels by means of a vertical movement of the one panel with respect to the other panel.

A thermoplastic-based building panel, such as a floor panel. The building panel includes an upper layer arrangement, a lower layer arrangement, and a balancing layer provided between the lower and the upper layer arrangement. The building panel further includes a groove arrangement including grooves. A thermoplastic-based building panel including an upper layer arrangement and a balancing layer which is a bottom layer of the building panel. The building panel includes a groove arrangement, wherein a major portion of the grooves therein is provided in the balancing layer only. A thermoplastic-based building panel including a mechanical locking system for horizontally and/or vertically locking the building panel to an adjacent building panel. The mechanical locking system includes a cooperating surface which is situated in a balancing layer and is configured to cooperate with a cooperating surface of an adjacent building panel.

Floor panels are shown, which are provided with a mechanical locking system on long and short edges allowing installation with vertical folding and where the long edge locking system prevents separation of the short edges during the folding action. Floor panels with mechanical locking systems with a flexible and displaceable tongue allowing easy installation.

A set of building panels including a first mechanical locking system at respective first and second opposite edges. The first mechanical locking system including at one of the first or second opposite edges a tongue groove configured to receive a locking tongue of the other of the first or second edges, for vertical locking of adjacent essentially identical panels in an assembled position. The locking tongue includes an essentially horizontal and/or upwards-facing upper surface. A second mechanical locking system is formed on respective third and fourth opposite edges. The second mechanical locking system includes at one of the third or fourth edges a wedge groove configured to receive a displaceable locking tongue, for vertical locking of essentially identical adjacent panels in an assembled position. The displaceable locking tongue is configured to displace in a displacement groove provided in the said other of the third or fourth edge.

Floor panels are shown, which are provided with a mechanical locking system on long and short edges allowing installation with vertical folding and where the long edge locking system prevents separation of the short edges during the folding action. Floor panels with mechanical locking systems with a flexible and displaceable tongue allowing easy installation.

Floor panels which are provided with a mechanical locking system including an extruded flexible tongue in a sidewardly open groove which during a vertical folding motion is bent horizontally. A tongue adapted for being received in a sidewardly open groove of a floor panel, wherein the tongue, which is an elongated extruded section, when received in the groove is bendable in a plane substantially parallel with a front face of the floor panel, such that the tongue is at least partially resiliently displaceable inside said sidewardly open groove in said plane during locking of the floor panel with another floor panel and wherein a vertical protrusion, serving as a friction connection between the tongue and the groove, is arranged at an upper or lower part of the tongue, wherein a total width of tongue varies in a longitudinal direction of the tongue.

A thermoplastic-based building panel, such as a floor panel. The building panel includes an upper layer arrangement, a lower layer arrangement, and a balancing layer provided between the lower and the upper layer arrangement. The building panel further includes a groove arrangement including grooves. A thermoplastic-based building panel including an upper layer arrangement and a balancing layer which is a bottom layer of the building panel. The building panel includes a groove arrangement, wherein a major portion of the grooves therein is provided in the balancing layer only. A thermoplastic-based building panel including a mechanical locking system for horizontally and/or vertically locking the building panel to an adjacent building panel. The mechanical locking system includes a cooperating surface which is situated in a balancing layer and is configured to cooperate with a cooperating surface of an adjacent building panel.