Interior shutters usually hinge on either side of a window opening, and swing inwards to allow access to the window or to allow light to enter a room. Operable louvred shutters have louvres, or slats, that rotate open or closed to control light, visibility and airflow. Shutters that have operable louvres are described using different terms, such as traditional shutters. For most people, window shutters have become a design accessory rather than a practical necessity. Like earrings or a tie tack, shutters add a dress-up flourish, though their roots are strictly utilitarian. These window coverings have been used for centuries, first inside, then outside.
Most popular are plantation shutters, which is the style we chose for our example of interior installation. The strong horizontal shadow lines can invest a room with late-afternoon drama. The slats we selected are in a fixed position; others have slats that are adjustable, which allows precise control of streaming sunlight.