Salmon 30cm (11") Deep Rimmed PlateLarge porcelain dinner deep rimmed plate, 30cm (12 inches) in diameter, is made from hard wearing porcelain, microwave, oven and dishwasher proof. Deep rimmed plates have a depth of 4. 5cm (1 inches) and are good for pasta, soups and dishes with lots of sauce (previously called 30cm deep rimmed bowl) , as well as having a contemporary feel. Often restaurants use this style of plate for main courses as it tends to centre the food.