stucco

thumb|upright=1.8|Baroque architecture|Baroque stucco on the ceiling of the Rotonde de Mars in the [[Louvre Palace, Paris, by Gaspard and Balthazard Marsy, 1658]]

Stucco or render is a construction material made of aggregates, a binder, and water. Stucco is applied wet and hardens to a very dense solid. It is used as a decorative coating for walls and ceilings, exterior walls, and as a sculptural and artistic material in architecture. Stucco can be applied on construction materials such as metal, expanded metal lath, concrete, cinder block, or clay brick and adobe for decorative and structural purposes.