As far as I know, according to the width of the kitchen cabinet countertop to determine the width of the sink, the general width of the sink should be the kitchen cabinet countertop minus 100mm or so. At the same time, according to the size of the kitchen cabinet countertops in the sea in 500mm-600mm this feature, can be derived from the fair width of the sink in 430mm-480mm. calculation method is this, you can according to your actual situation to calculate on the line.