The disclosure relates to building panels, such as floor panels, including a locking device. The locking device includes a protrusion and a groove configured to cooperate for vertical locking of a first edge portion of a first building panel to an adjacent second edge portion of a second building panel. The locking device further includes a separate tongue arranged in an insertion groove and a recess configured to cooperate for horizontal locking of the first and the second edge portions. The first and second edge portions are configured to be assembled by a relative essentially horizontal displacement and/or by angling. The insertion groove is provided vertically below at least one horizontal plane extending along a vertical locking surface provided in a third edge portion of the first building panel.

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.

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 set of floor panels, which is suitable for forming a floor covering in herringbone pattern, wherein these floor panels are oblong rectangular; wherein the long and the short edges are provided with mechanical coupling means; and wherein the male coupling part on the short edge can be inserted into the female coupling part on the long edge in one and the same turning movement which is used to insert the male coupling part on the long edge into the female coupling part on the long or short edge.

A panel having a panel upper side and a panel lower side and at least two opposing panel edges, which have each an edge break on the panel upper side, the edge breaks forming in the connected state a joint in a covering surface. The edge break of one of the panel edges is formed larger than the edge break of the opposing panel edge, and a lower part of the large edge break of the one panel edge is overlapped in the connected state by the small edge break of the opposing panel edge.

A rectangular panel has long and short edges, such that on each long edge and on each short edge, the panel has a coupling part, which allows the panel to be coupled to another similar panel.

A floor panel has two pairs of opposite edges so at least at one pair of opposite edges the floor panel is provided with coupling parts formed in one piece with a substrate of the floor panel. A relief is provided at least with a plurality of embossments in a synthetic transparent material of a top layer of the floor panel. The embossments are performed deeper than the synthetic transparent material, and the printed decor and an underlying layer of the substrate are embossed. The underside of the substrate is undeformed.

A set of floor panels includes floor panels that are oblong rectangular and have a pair of long edges and a pair of short edges. The long and the short edges are provided with mechanical coupling parts, which allow coupling the floor panels of the set to each other such that a herringbone pattern can be realized herewith.

A wall or ceiling panel, which, on one side edge, comprises a male coupling part and, on an opposite side edge, comprises a female coupling part. The male coupling part comprises a tongue and the female coupling part comprises a groove. The groove is bordered by a front lip and a rear lip, with the characteristic that the panel forms a ceiling-high wall panel and/or has a length of at least 2400 mm.

A wall or ceiling panel, which, on one side edge, comprises a male coupling part and, on an opposite side edge, comprises a female coupling part. The male coupling part comprises a tongue and the female coupling part comprises a groove. The groove is bordered by a front lip and a rear lip, with the characteristic that the panel forms a ceiling-high wall panel and/or has a length of at least 2400 mm.