Instead of lowering the vanity so kids can reach, keep it at the standard height and incorporate a stool in the toe kick that can be pulled out when needed so you aren’t constantly tripping over it. “If the family really wants a lower vanity, I suggest doing a split-height vanity at 33 or 34 inches high—a little lower than average so that adults have to stoop a bit and kids have to reach a bit for a happy medium,” advises interior designer Terrell Goeke.