Sep 13th 2014 8:37AM. By Yanic Simard A bathroom layout is mostly a pretty easy decision. The ADA bathroom sink height requirements are fairly straightforward. Bathroom vanities range from 30″-36″ in height. Lavatory SInks. This is the distance from the sink rough-in to the finished floor. To be ADA compliant, every fixture in the bathroom, including the sink, must be accessible to a person in a wheelchair.This places limits on the height of the sink … Like with the other sinks, this height … Modern bath cabinets have become taller in recent years in what is known as “Comfort Height Vanities.” Vanities come in a variety of height arrangements including standard height, comfort height, and vessel sink height. The counter height is typically 32 to 34 in., but what’s actually more important is your sink height. If the plumbing is already … Modern bathroom cabinets are 32 to 36 inches high, including the countertop. Keeping that in mind, the standard height for a bathroom sink drain rough-in is about 24-inches. Share. This is based on a countertop that’s 32-inches from the floor. An above-counter vessel sink will naturally sit much higher than an inset below-counter sink, and so a vessel should be placed on a lowered cabinet to compensate. The Right Height for Your Bathroom Sinks, Mirrors and More. The standard height of a bathroom vanity cabinet is 32″. The average sink is about 8-inches deep. Ultimately, you should try a few different sinks and figure out the height …