Floor panel comprising coupling parts enabling two floor panels to adopt two or more different mutually locked positions (P1-P2) when coupled, wherein the two or more mutual positions (P1-P2) differ from each other in that they, at the coupled sides, define two or more different distances (S) between the upper side edges of the floor panels, and adapter elements are provided with the coupling parts, so that the use or non-use of these adapter elements enables setting the mutually locked position (P1-P2).