What is the standard height for TOILET basin counter? assuming the basin & counter is parallel (same height).?

Question

I'm 5'3" and my husband is 5'9", 2 kids age from 2 & 4.

thank you

Answer 1

You will find old vanities at 30" height, but as we have grown in stature, this is too low for most adults.  Most vanities today are 33", 34", or 36" (same height as your kitchen counter tops).

Stay with standard vanity 21" depth (front to back) with a 22" depth counter top.  

You should have a preferred width of 18" either side of center (36" total width), and certainly no less than 15" either side of center to meet code.