Vertical, horizontal or diagonal decorative wood strips used to give the appearance of individual panes (true divided lite glass). A muntin is normally manufactured as a unit ("insert") and secured to the inside sash using "grid pins."
A short vertical or horizontal bar used to separate panes of glass in a window or panels in a door. The muntin extends from a stile, rail, or bar to another bar. This tern is often confused with mullion.
A narrow piece of material—in older windows, wood—that separates small glass lites. In early America, it was not possible to make large sheets of glass so muntin strips were used to hold the small panes of glass. This is called a true divided lite. In modern windows, between the glass muntins provide the desired aesthetics and the benefit of easy cleaning. See America's Windows
An extruded sash component that allows for the glazing of two or more lites of glass in a single sash, muntin can run horizontally, vertically or both. Sash glazed using muntin are said to be of "true divided lite" type (false muntin can be installed in the air space of an insulated glass unit or externally applied over a single lite).
Profile or moulding, either vertical or horizontal, used to separate glass in a sash into multiple lites. Generally refers to components used to construct divided lite grids or grilles simulating a divided lite look.
Muntin is a strip of wood or metal separating and holding panes of glass in a window. Muntins can be found in doors, windows and furniture, typically in western styles of architecture. The combination of muntins and glass creates a grid system dividing a single sash or casement into smaller panes, called "lights" or "lites".