What is the size of the kitchen sink for the average family

There are generally three standard sizes of kitchen sinks, single sink, double sink, triple sink. Of course, the size of different models is not the same, but in general the size of stainless steel sink is still relatively standard, the general size is a single sink 60 * 45cm, 50 * 40cm is relatively small; double sink size is generally 88 * 48cm, 81 * 47cm is more common; three sinks is generally 97 * 48cm, 103 * 50cm is more common.