Cabinet Glossary
What is a Mullion?
A mullion is a vertical or horizontal bar that separates sections of a window or glass panel. In cabinetmaking, the term usually refers to the decorative grid across a glass-front cabinet door, which is why these doors are sold as mullion cabinet doors.
Technically, the thin bars that divide a single pane of glass are called muntins, while a mullion separates larger window units or panels. Cabinet manufacturers often use the terms interchangeably. Mullion cabinet doors are typically made with wood strips finished to match the surrounding door frame. They can have a simple cross, a rectangular grid or a more decorative pattern, and are often used on a few upper cabinets to display glassware, dishes or cookbooks.
