Double sash window frames are usually used when single sash window frames are not applicable due to wider openings. The middle sash bar between two sashes is taken away by using special mechanisms and therefore, it is possible to have maximum use of daylight and view when the user opens the window. Firstly, the standard handle is opened, later, the second handle hidden next to the other sash is used in order to open both sashes. It is also possible to use the first opening sash in ventilation position. The typology has two dropper options as aluminum and wood.