Q. What is the standard size of table top wash basin?

This size is also common for large vessel sinks. Sinks that are round or oval often measure between 16 and 20 inches (diameter). In case of rectangular sinks it typically measures between 19 and 24 inches in width and 16 and 23 inches in depth. Larger sinks can be as deep as 10 inches although the standard depth for a vanity sink is between 4 and 9 inches. If want to install a countertop sink make sure the vanity used is large enough to accommodate the sink. Choose a wash basin of any style shape and color to complement the design of the bathroom.