A complete door element is composed of the door leaf and the door frame. The door leaf has a sandwich structure. The frame construction consists of outer bars that are planked with thin hardboard, particleboard, MDF or veneer plywood. These cover plates („Board“) are perfectly combined with the lightweight door leaf core and result already thin plates with a stable construction with good durability. Decorative veneers or variable color film coatings provide designs for all needs and tastes.