This is also going to depend on the type of seating you choose and what kind of overhang is recommended so that your guests can sit comfortably at the bar with enough leg room.
Typical bar counter depth.
Bar counter depth can range from 16 to 20 inches deep depending on your preference.
The standard depth for a kitchen island without a breakfast bar is 27 inches deep.
What factors determine the standard depths of countertops.
The top bar is around 18 to 24 deep and the bottom where the bartender works is usually 22 to 26 inches with a total depth of 28 to 38 inches.
The total height of a bar is 42 to 45 inches and 36.
The standard depth of wet bar countertop takes a couple of factors into consideration.
It should be large enough to fit a sink and fixtures but not so deep you can t reach to the back.