A recess is provided at the surface of a floor or wall covering between two panels mechanically coupled to each other by a male coupling part and a female coupling part. The recess may include a first recess cut out or otherwise provided at the female edge through the top layer and extending into the substrate. The recess may have a second recess cut out or otherwise provided at the male edge through the top layer and extending into the substrate. The recess includes a grouting material.

A panel including an upper side, a lower side, a core and complementary locking elements provided in pairs on opposing panel edges. At least one pair of locking elements has complementary hook profiles, namely a receiving hook and an arresting hook. The receiving hook has a hook periphery arranged remote from the main body and a receiving recess arranged in the vicinity of the basic body. The receiving recess is open towards the panel upper side, and the arresting hook has an arresting recess, arranged in the vicinity of the basic body and open towards the panel lower side, and has an arresting shoulder remote from the basic body and which, in the vertical joining direction, fits into the receiving recess of the receiving hook. The arresting hook has a vertically locking arresting contour and the receiving hook has a form-fitting contour, which form fits with the arresting contour of the arresting hook. The arresting hook has, near the basic body, a horizontally locking retaining surface on its arresting shoulder and the receiving hook has a horizontally locking retaining surface arranged remote from the basic body in the receiving recess. The receiving hook is provided with a sealing groove open to the panel upper side, and the arresting hook has a sealing strip projecting towards the panel lower side, which in the joined-together state of the complementary hook profiles fits into the sealing groove. The sealing groove and the sealing strip are arranged in the region of the panel core, and the surface of the sealing groove is formed from the material of the panel core and/or the surface of the sealing strip is formed from the material of the panel core.

Panels are shown which are provided with a mechanical locking system allowing perpendicular connection with a snap action. A set of panels including a first and a second panel, an edge of the second panel is insertable into a groove of the first panel, when the panels are arranged essential perpendicular to each other, to obtain a mechanical connection between the first and the second panel, when the second panel is displaced essentially perpendicularly to the first panel.

A method of assembling resilient floorboards is disclosed that includes the step of bending an edge of a floorboard during the assembling. The bending reduces the force required for connection of the edge to another edge of a juxtaposed floorboard. The floorboards may be provided with a mechanical locking system for vertical and horizontal locking of two adjacent floorboards.

A set of mutually lockable panels comprises a first panel having an edge including a male part and a second panel having an edge including a female part for receiving the male part of the first panel in unlocked condition of the panels. The male part has an outer side which, in locked condition of the panels, is directed to the second panel in a direction substantially parallel to the front face of the first panel, and an opposite inner side which is provided with a locking surface. The female part comprises a locking member, which is pivotable about a pivot axis that extends substantially parallel to the edge of the second panel and an actuator for rotating the locking member from its unlocked condition to a locked condition of the panels.

The invention relates to a decorative surface covering element, in particular a floor panel, ceiling panel or wall panel. The invention also relates to a panel covering, such as a floor covering, ceiling covering or wall covering, including a plurality of panels. The invention further relates to a method of producing a decorative surface covering element.

The invention relates to a glue-down decorative floor covering system. The invention also relates to a glue-down floor covering realized by a plurality of tiles of the glue-down floor covering system according to the invention. The invention further relates to a tile for use in a glue-down floor covering system according to the invention.

A set of panels includes first and second panels and a mechanical locking device for assembly 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 strip edge, and first and second locking strip surfaces respectively extending in directions substantially corresponding to those of the first and second panel surfaces. A locking element of the locking strip cooperates with a locking groove at the 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. A flexing groove extends from a first locking strip surface/first edge transition and into the first panel at an angle α from the first panel surface.

A panel, in particular a floor panel, interconnectable with similar panels for forming a covering, and a covering consisting of mutually connected floor panels.

A panel comprising a centrally located core, at least one first coupling part and at least one second coupling part connected respectively to opposite edges of the core, which first coupling part includes an upward tongue, at least one upward flank lying at a distance from the upward tongue and an upward groove formed in between the upward tongue and the upward flank wherein the upward groove is adapted to receive at least a part of a downward tongue of a second coupling part of an adjacent panel: which second coupling part includes a downward tongue, at least one downward flank lying at a distance from the downward tongue, and a downward groove formed in between the downward tongue and the downward flank, wherein the downward groove is adapted to receive at least a part of an upward tongue of a first coupling part of an adjacent panel.