A method for mounting at least one door wing to a carrier of a guide system, the guide system comprising: - a first guide rail for guiding the at least one door wing, - a second guide rail for guiding the at least one door wing, the second guide rail extending transversely relative to the first guide rail in a mounted condition, - a carrier configured to be displaced at least along the second guide rail, the carrier being connected or being configured to be connected to the at least one door wing via at least three furniture hinges which are to be arranged or which are arranged spaced apart from each other in the mounted condition, wherein the carrier has a longitudinal direction, characterized in that all furniture hinges by which the at least one door wing is connectable or is connected to the carrier in a mounted condition, are arranged or are configured to be arranged on a mounting member separate from the carrier, wherein the mounting member is configured to be releasably connected to the carrier via at least one fastening device (18a, 18b), and wherein the mounting member is releasably connectable to the carrier in a direction extending transversely to the longitudinal direction of the carrier, and wherein the method includes the following steps: - providing a mounting member separate from the carrier, wherein at least three or more furniture hinges for movably supporting the at least one door wing are arranged or are to be arranged on the mounting member, - connecting the furniture hinges, which are arranged on the mounting member, to the at least one door wing, and - releasably connecting the mounting member to the carrier of the guide system. - a first guide rail for guiding the at least one door wing, - a second guide rail for guiding the at least one door wing, the second guide rail extending transversely relative to the first guide rail in a mounted condition, - a carrier configured to be displaced at least along the second guide rail, the carrier being connected or being configured to be connected to the at least one door wing via at least three furniture hinges which are to be arranged or which are arranged spaced apart from each other in the mounted condition, wherein the carrier has a longitudinal direction, characterized in that all furniture hinges by which the at least one door wing is connectable or is connected to the carrier in a mounted condition, are arranged or are configured to be arranged on a mounting member separate from the carrier, wherein the mounting member is configured to be releasably connected to the carrier via at least one fastening device (18a, 18b), and wherein the mounting member is releasably connectable to the carrier in a direction extending transversely to the longitudinal direction of the carrier, and wherein the method includes the following steps: - providing a mounting member separate from the carrier, wherein at least three or more furniture hinges for movably supporting the at least one door wing are arranged or are to be arranged on the mounting member, - connecting the furniture hinges, which are arranged on the mounting member, to the at least one door wing, and - releasably connecting the mounting member to the carrier of the guide system. - providing a mounting member separate from the carrier, wherein at least three or more furniture hinges for movably supporting the at least one door wing are arranged or are to be arranged on the mounting member, - connecting the furniture hinges, which are arranged on the mounting member, to the at least one door wing, and - releasably connecting the mounting member to the carrier of the guide system.