sand-coated interior wall
A traditional Japanese interior wall finish made by mixing sand into the plaster, giving a textured, earthy appearance. Common in sukiya-style architecture and tea rooms.
The sand-coated walls of the tea room create a calm atmosphere.
Compound of 砂 (すな, 'sand') and 壁 (かべ, 'wall'). The term directly describes the sand-mixed plaster finish.