Apartment M – interior design and Casco planning. A central piece of furniture is able to transform the open space into individual rooms. Large sliding doors can be drawn out of the central furniture to create closed compartments. If these doors are recessed in the wooden box the apartment is on continuous space. The wooden central furniture contains also a work station, storage, a relax corner that can be extended to a double guest bed. Only the toilet and the utility room are closed with regular doors.