How is a Dutch door divided?

A Dutch door is characterized by its unique construction that features a horizontal division, allowing the top and bottom halves to function independently. This design is often used for practical purposes, such as allowing the top half to be opened for ventilation while keeping the bottom half closed for safety or to keep pets contained. The horizontal division distinguishes Dutch doors from other types of doors, which may be divided vertically, diagonally, or designed with panels. This versatility makes them popular for both functional and aesthetic reasons in various building styles.