In kitchen planning and spatial design, horizontal lines play a defining role. Custom door formats allow for individually tailored joint divisions, creating a sense of architectural harmony throughout the space. In the example shown, the division of fronts and wall panels follows the upper edge of the worktop — a detail that speaks to the precision and thoughtfulness characteristic of premium German kitchen design. Depending on worktop thickness, plinth height, and cabinet height, the joint position varies and is carefully adjusted to ensure a refined, cohesive finish.