Hello,
To answer your question each bowl measures 378.80mm (14 15/16″in) in width and 502.80mm (19 3/4″) in length.
I hope this answers your question, should you have any other questions please do not hesitate to reach a Conglom Kitchen&Bath representative at 1-877-333-0098.
Thank you,
-Conglom Kitchen & Bath Customer Service Team