Building panels, such as a floor panels or wall panels, which 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 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.

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.

A device for inserting a tongue into an insertion groove in a panel including a first part including a supporting surface configured to cooperate with an upper surface of a panel. The device includes a second part, which is connected to the first part, including a guiding device for a displaceable puncher which is configured to displace a tongue into an insertion groove of a panel. The supporting surface is extending in a first direction and the guiding device is extending in second direction.

A method and device for inserting a tongue in an insertion groove in a panel by a device, wherein the method includes: displacing a tongue guiding device in a first direction by displacing a puncher in the first direction, and displacing a tongue between a first part and a second part of the tongue guiding device and into an insertion groove in panel by further displacing the puncher.

A handheld device is disclosed for inserting a tongue into an insertion groove in a panel. The device includes a first part including a power unit which is configured for driving a puncher. The handheld device includes a second part, which is connected to the first part. The second part includes the displaceable puncher and a guiding device which is configured to guide the displaceable puncher and the tongue. An outer edge of the second part includes a first positioning element and a second positioning element. The first positioning element and the second positioning element are configured to be positioned at least partly in the insertion groove during an insertion of the tongue into the insertion groove. The displaceable puncher is configured to displace the tongue from the handheld device to an inserted position in the insertion groove.

Building panels, such as a floor panels or wall panels. The panels including 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 including 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.

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.

Building panels, such as a floor panels or wall panels. The panels including 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 including 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 laminated countertop assembly can include a first generally longitudinal slab with a first substrate, where the first substrate has lamination on a countertop side of the first substrate and lamination on an edge side of the first substrate that extends along a first portion of a length of the edge side of the first substrate. The first substrate can also include a first miter cut angled into the first substrate and slots extending into the first substrate for receiving biscuits. The laminated countertop assembly can also include a second generally longitudinal slab with a second substrate, where the second substrate has lamination on a countertop side of the second substrate and lamination on an edge side of the second substrate. The second substrate can also include a second miter cut at a corner of the second substrate and slots extending into the second substrate for receiving the biscuits.

A method and device for inserting a tongue in an insertion groove in a panel. The method includes displacing a first tongue to an end position of a tongue queue, which comprises tongues under compression, in a tongue queue device, compressing the first tongue, displacing the tongues in the tongue queue by compression forces from the tongues under compression, displacing a second tongue, which is at a front position of the tongue queue, to an inserting device, displacing the second tongue into an insertion groove in a panel by said inserting device.