Patent ID: 7954298

Claim:
A method for producing a two-dimensional panel adaptable for floor, wall, and/or ceiling coverings comprising: milling at least first and second edge grooves into a base panel, wherein each edge groove is in a region close to a longitudinal side of the panel and close to a longitudinal side opposite from the longitudinal side close to the other; filling both edge grooves with an elastic, water-repellent plastic or sealing mass; allowing the plastic or sealing mass to harden; and milling a groove and a tongue on the longitudinal sides of the panel, wherein each outer lateral flank of the plastic or sealing masses are milled; and milling at least one of the upper longitudinal grooves in the same procedure as the milling of the first and second edge grooves, and wherein any upper longitudinal groove that will form an elastic expansion joint in the finished panel is milled more deeply than any other upper longitudinal grooves.