Interior Space and Exhibition Design Quiet Boundary Residence by ACG Design International Quiet Boundary is a residential interior design for a 109 square meter apartment in Taiwan. The home contains two bedrooms, a living room, a dining room, a kitchen and two bathrooms. A sculptural stone door frame redefines the relationship between the entrance, the kitchen and the dining room, keeping natural light while separating the areas. The walls are hand finished with imported mineral paint in calm shades of gray. The master bedroom sits behind a gray wall and has a sloping ceiling. A two-way sofa keeps the circulation open.