COST 2 COST The single-wall or straight kitchen combines cooking, washing and storage zones which are housed in a single row of cabinets, usually against a wall. This basic kitchen layout design is ideal for: apartments, units or small homes with limited space. If space permits, a small kitchen island can be introduced which can be used to separate the kitchen from the living area. In smaller spaces an island on castors is a good idea as it offers flexibility to move it around if required.