Three layers of stone shelve walls array from exterior to interior to create a narration of stone processing in space. The stones used in the shelves are recycled materials from different stages of stone processing. The first layer that separates architecture from the street is a perforated stone wall made from thousands of 10cm stone cubes cut directly from left over dimension stones in the quarry. The three trapezoidal openings punched through the perforated stone walls are the entrance, the clerestory window and the opening to the restaurant. Between the perforated and existing wall, there is a garden that brings light and breeze into the space. The second layer of stone shelves sets apart from the inside of existing wall and creates a residual space that prepares visitors for entering the gallery. The outwards-tilted stone shelve in the second layer is composed by the stacking of mountain skins cut away from dimensional stones. The trace of chisel and the roughness of stone unveil the live of the material. The third layer of stone shelves is zigzag stone screen that separates exhibition space, meeting hall and stone archive within the double story gallery space. The stone screen is made of small flag stone slabs sliding between a structure net welded by steel. The space above and space below are connected and separated simultaneously by the stone screen.