Floor panels have coupling parts in the form of a tongue and groove with locking surfaces. In a coupled state of two such panels, an open space is present, viewed vertically, between the tongue and the lower lip, and viewed horizontally, between the contact zone and the contact between the horizontally active locking surfaces. The underside of the tongue in the open space comprises a first face. The top side of the lower lip in the open space comprises a second face parallel to the first face. In the coupled state of two such panels, at least one face is perpendicular to the panel and intersects both the first face of the first coupled panel and the second plane of the panel coupled to the first panel.

A method for manufacturing panels such that the panels are subjected on at least one side to an operation with cutting tools. The position and/or orientation of each panel is determined prior to the operation, and the position and/or orientation of each panel is adjusted prior to the operation and/or the position of the tools is potentially adjusted, such that at least one part of each panel concerned takes a fixed orientation and position in relation to the tools.

A method for manufacturing panels such that the panels are subjected on at least one side to an operation with cutting tools. The position and/or orientation of each panel is determined prior to the operation, and the position and/or orientation of each panel is adjusted prior to the operation and/or the position of the tools is potentially adjusted, such that at least one part of each panel concerned takes a fixed orientation and position in relation to the tools.

A set of milling tools is for forming profiled edge regions on at least two opposite edges of panels, with a first and a second subset of milling tools. The first subset allows a first type of profiled edge region to be formed. The male coupling part and female coupling part are provided with horizontally acting locking surfaces. A first milling tool from the first subset is configured to form the horizontally acting locking surface of the male coupling part. The second subset allows a second type of profiled edge region to be formed, wherein the male coupling part and female coupling part are provided with horizontally acting locking surfaces. A first milling tool from the second subset is configured to form the horizontally acting locking surface of the male coupling part; and the first milling tools are configured to be mounted on the same drive shaft.

A set of milling tools is for forming profiled edge regions on at least two opposite edges of panels, with a first and a second subset of milling tools. The first subset allows a first type of profiled edge region to be formed. The male coupling part and female coupling part are provided with horizontally acting locking surfaces. A first milling tool from the first subset is configured to form the horizontally acting locking surface of the male coupling part. The second subset allows a second type of profiled edge region to be formed, wherein the male coupling part and female coupling part are provided with horizontally acting locking surfaces. A first milling tool from the second subset is configured to form the horizontally acting locking surface of the male coupling part; and the first milling tools are configured to be mounted on the same drive shaft.

A method for manufacturing panels such that the panels include a substrate and a decorative top layer. The decorative top layer has one or more lateral edges. The method includes the step of machining at least one of the lateral edges of the decorative top layer by a rotating milling cutter. The axis of the rotating milling cutter is tilted concerning the lateral edge in a first plane comprising the decorative top layer to thereby form a first angle with the normal of the lateral edge and/or is tilted in a second plane perpendicular to the lateral edge to thereby form a second angle with the first plane.

A method for manufacturing panels such that the panels include a substrate and a decorative top layer. The decorative top layer has one or more lateral edges. The method includes the step of machining at least one of the lateral edges of the decorative top layer by a rotating milling cutter. The axis of the rotating milling cutter is tilted concerning the lateral edge in a first plane comprising the decorative top layer to thereby form a first angle with the normal of the lateral edge and/or is tilted in a second plane perpendicular to the lateral edge to thereby form a second angle with the first plane.

A method for producing lumber from a tree trunk, where a machining surface is produced on the trunk by removing a slab region, and where, during a feed movement in a feed direction, the trunk moves toward at least two milling tools, which are each feedable along an infeed axis, whereby two waney regions adjacent to the machining surface are milled out and at least one side product board is profiled, and the side product board is separated from the trunk by a saw cut. During feeding and before profiling the side product board, the trunk is brought from a transport to a machining position by moving the trunk around and/or along an adjustment axis, which runs orthogonally to the feed direction, and, as a result, at least one leading region of the trunk is shifted transversely to the feed direction in the direction of at least one milling tool.