Stained Glass Window Coloring Page: Free PDF Sheet

Stained Glass Windows and Their Patterns

Lead Lines Holding Small Glass Pieces Together

Traditional stained glass windows are built from individual pieces of colored glass held together by strips of lead called cames, which are soft enough to bend around each piece's edge and strong enough to hold the whole window rigid once assembled. The thick black outlines seen in any stained glass design represent these lead lines, and a skilled glazier plans the entire pattern around how the lead grid will divide the image before a single piece of glass is cut.

The Pointed Arch and Gothic Building Style

The tall pointed arch shape became a defining feature of Gothic architecture starting in twelfth-century France, replacing the rounder Romanesque arch used in earlier centuries. Builders discovered that a pointed arch directs weight more efficiently down through supporting columns, which let architects build taller walls filled with larger window openings — exactly the kind of space that made large stained glass windows practical for the first time.

Rose Windows and Central Medallions

A circular medallion at the center of a window design, often filled with a radiating pattern resembling flower petals, echoes the tradition of the rose window — large circular stained glass windows that became a signature feature of Gothic cathedrals. The radiating design draws the eye to the center first, then outward toward the surrounding panels, a layout choice still used in simplified window patterns today.

Color and Light in Church Windows

Medieval stained glass makers achieved different colors by adding metal oxides to molten glass — cobalt for blue, copper for red or green, and gold for certain shades of pink and ruby. Sunlight passing through these colored panels scatters into the interior of a building, and the changing quality of light throughout the day was itself considered part of the artistic and spiritual experience of the space.

The Trefoil Shape at the Peak of the Arch

A small three-lobed shape called a trefoil often sits at the very top of a pointed church window, a design borrowed from three-part symbolism common in medieval Christian art and architecture. Builders repeated the trefoil motif across doorways, window tracery, and carved stonework throughout Gothic buildings, making it one of the most recognizable small decorative details in historic church design even to viewers who have never studied architecture.

Symmetry and the Craft of Window Design

A symmetrical layout of triangles and diamonds around a central medallion reflects a deliberate design choice going back to the earliest stained glass workshops, where mirroring a pattern left and right made a large window easier to plan, measure, and cut accurately by hand. Symmetry also gives a viewer's eye a natural resting point at the center of the design before moving outward toward the surrounding panels, a visual habit still used by designers working in stained glass, mosaic tile, and quilting patterns today.

Repairing and Preserving Old Windows

Historic stained glass windows require specialized restoration when the lead cames holding the glass pieces weaken with age, often after a century or more of exposure to weather and temperature swings. Skilled restorers carefully document each panel's original pattern before disassembly, since even a small stained glass window can contain hundreds of individually cut pieces that must be returned to their exact original position to preserve both the visual design and the structural integrity of the whole window.