The average height of a desk used for general purpose writing is 28 to 30 inches. Desks used for typing should be lower at 24 to 28 inches. Comfortable desk heights vary according to the height of the person.
Besides desk height, several factors must be considered when designing a comfortable work space. The height of the chair and position of objects on the desk are critical in creating an area for work. Everything should be within easy reach. If a computer is to be used, the monitor should be at a comfortable viewing angle, and the keyboard should not strain the wrists.