Stone mullions were used in Armenian, Saxon and Islamic architecture prior to the 10th century. They became a common and fashionable architectural feature across Europe in Romanesque …

Aug 28, 2025 · In contrast, mullions are the vertical supports that hold together larger window sections, often seen in two-pane assemblies. Originating in England centuries ago, these …

Mullion, in architecture, a slender vertical division between adjacent lights or subdivisions in a window or between windows in a group. Mullions appear with the invention of tracery and are …

The meaning of MULLION is a slender vertical member that forms a division between units of a window, door, or screen or is used decoratively.

Apr 12, 2025 · Mullions are often overlooked but play a big role in architecture. They’re the vertical or horizontal bars that separate different sections of windows or doors, and they can …

Window mullions are vertical or horizontal bars that separate and support multiple window units within a larger window opening. Unlike muntins, which divide individual panes within a single …

Oct 30, 2025 · Mullioned windows use strong vertical bars, called mullions, made of stone or wood to divide large openings into smaller sections. In medieval times, this was practical since …

Jan 1, 2026 · Mullions are integrated into the frame system to allow for the installation of multiple, separate window units within a single rough opening, which is a common requirement in …

Mullions are one of the most important elements in architecture; they are vertical or horizontal members that divide window and door openings or separate sections of wall, acting as visual …

Feb 12, 2025 · Mullions provide structural support and can be made from various materials like wood, metal, or vinyl. They are different from muntins, which divide glass panes within a …