Floor panel

A floor panel or wall panel, wherein the panel is made rectangular and oblong having a length of more than 110 cm and comprises a substrate and a top layer provided on this substrate, as well as a vapor-tight backing layer applied to the lower side of said substrate;

• wherein the top layer is at least composed of a print and a transparent layer situated above said print, the print being provided on a carrier sheet;
• wherein the transparent layer has a thickness of 0.4 millimeter or less and the wear resistance of said floor panel as measured in accordance with EN 13329 is at least AC3;
• wherein the substrate is a single-layered substrate of a high density fiberboard, wherein said high density fiberboard has a thickness of at least 3 millimeter and an average density of at least 1000 kilograms per cubic meter;
• wherein the substrate has a thickness of 7 millimeters or less;
• wherein said substrate forms at least half of the thickness of the panel, wherein the substrate has a residual moisture content of less than 10% by weight;
• wherein the panel, at least at two opposite edges, is provided with mechanical coupling means allowing that two of such floor panels can be coupled to each other, such that a locking is obtained in a vertical direction perpendicular to the plane of the coupled panels, and in a horizontal direction perpendicular to the coupled edge and in the plane of the panels;
• wherein the mechanical coupling means are arranged for a coupling by a turning movement (W) along the respective edges,
• wherein the coupling means are formed as a tongue and groove bordered by an upper lip and a lower lip;
• wherein the tongue and groove substantially are responsible for the locking in said vertical direction;
• wherein the tongue and groove are provided with locking parts, substantially responsible for the locking in said horizontal direction;
• and wherein the coupling means are substantially realized in said substrate, wherein the mechanical coupling means are arranged to press the coupled floor panels against each other by means of a tensioning force obtained by the lower lip which is bent out in a coupled condition and which, in an attempt of springing back, presses against a lower side of the tongue.