Light Gray Stained Glass is one of the 16 stained glass colors of Minecraft, added in Java Edition 1.7.2. Light Gray Stained Glass is crafted on a crafting table: the eight outer cells of the 3×3 grid hold glass blocks, the center cell holds 1 light gray dye, and one craft yields 8 stained glass blocks. Light Gray Stained Glass counts as renewable, stacks up to 64 blocks, and records hardness 0.3 and blast resistance 0.3. Without a tool enchanted with Silk Touch, Light Gray Stained Glass drops nothing when broken; stained glass has no assigned tool, so every tool breaks stained glass at the same speed. Naturally generated Light Gray Stained Glass appears only in trial chambers: since Java Edition 1.20.3 and Bedrock Edition 1.20.60, intersections of those structures can hold light gray stained glass.

Light Gray Stained Glass recolors a beacon beam when stacked anywhere above the beacon: the first stained glass block sets a light gray beam, and each additional stained glass block blends a new color in by averaging. Viewed through identical glass, adjacent Light Gray Stained Glass turns invisible, so wide monochrome facades stay clean from the inside. Mobs cannot spawn on stained glass — zombie reinforcements are the single exception — and mobs treat stained glass as fully opaque, letting Light Gray Stained Glass hide players like a solid wall. Redstone dust and components sit on stained glass but cannot power stained glass; in Java Edition, stained glass carries a redstone signal upward only. For builders, Light Gray Stained Glass offers a soft neutral tint — paler than Gray Stained Glass, more colored than plain Glass — suited to windows, skylights, and church-style glass walls.