Referring to the image below:
A) Shutter-the shutter is the entire window covering entity installed into the opening. It consists of all the parts, panels, and frame and can be quite large. Our example picture is only one shutter and two panels. B) Panel-the panel consists of one set of stiles, rails, and a section of louvers. Our example picture consists of two panels and only one shutter. The panels swing open on hinges much like your doors. C) Rail-the pieces at the top and bottom of the panel that provide structure to the shutter. A divider rail can also be placed in the panel to separate the top and the bottom louvers. Every shutter panel has at least a top and bottom rail. D) Louvers-the louvers are the blades that rotate open and closed. They vary in size from 1.25" to 5.5" and are all operated uniformly by the tilt rod. E)Tilt Rod-the tilt rod is the bar in the center of the panel that operates and rotates all the louver blades at once. F) Stiles-stiles are the vertical supports that the louver blades connect into. The top and bottom rails also join with the stiles to form the structural support for the louvers. All shutters have stiles. G) Frame or Mount-the frame surrounds all the panels in a particular panel set. The frame is usually attached to the inside of the window jamb, the wall, or a door. There are numerous frames and different applications require different frame mounts, but most shutters have some sort of frame.
