The zero line door represents one of the most innovative solutions available in the contemporary door industry. These doors blend seamlessly with the wall and create a uniform line. Also known as hidden doors, zero-line interior doors boast aluminum frames that remain imperceptible to the eye. This design ensures that the door remains hidden, blending effortlessly with the wall to facilitate uniform painting. The hallmark of zero-line doors lies in their ability to blend seamlessly with the wall, thanks to their hidden nature. With zero line doors, the integration is so smooth that the door almost disappears into the wall, achieving a smooth and not "broken" surface. This innovative design feature, typical of every Zero Line door, allows for a smooth transition between the door and the surrounding wall, ensuring a visually cohesive aesthetic. The discreet nature of zero line doors ensures that they are almost indistinguishable from the surrounding wall, offering a smooth and sophisticated look.