2 Track Sliding Windows

A two panel or two-lite sliding window has one fixed panel of glass, and the other side is a operable sash that slides either left or right to open. A three panel or three-lite sliding window has three panels of glass within one window frame.Definitions of sliding window. a window that open by sliding horizontally. type of: window. a framework of wood or metal that contains a glass windowpane and is built into a wall or roof to admit light or air.