Depending on how tall you are, the average height of a cutting table should be between 36 and 40 inches high, but you may want to lower it for children.
How high should a cutting table be for quilting?
For quilters using a rotary cutter to slice and dice - the optimum position of your table should be 2-3 inches below your waist. I'm 5 foot 2 (and a half), and the perfect height of my table is 34" from the floor to my table top's surface.
What is a good size sewing cutting table?
A standard cutting table height should range from 36 to 40 inches. With this measurement, you don't have to overstrain your back or bend too much. It is optimal for a human's average height. You might need a shorter table if you are below average height.