A description is given of a method for the computer-aided construction of flexible printed circuit boards that are arranged in a housing (10) of a device. The method provides a 3D model for determining the fixed points (1 to 4) of the printed circuit board, such as fastening points and connecting points, and a 2D model based on a development of a skeleton model (20) of the printed circuit board, for creating a printed circuit board design (40) comprising a printed circuit board contour and a printed circuit board layout. The two development environments are uniquely assigned to one another.