NCIDQ Interior Design Professional Exam (IDPX) Practice Exam

The maximum height for upper cabinets located above work surfaces that ensures accessibility is 44 inches. This height is based on ergonomic guidelines that consider the average reach of most users, ensuring that items stored in the upper cabinets are easily accessible without requiring the use of a step stool or excessive stretching.

Design guidelines recommend this height to accommodate individuals of varying heights to provide an inclusive and comfortable working environment. A height of 44 inches allows individuals, including those in wheelchairs, to reach commonly utilized items in the cabinets without difficulty.

In contrast, the other height options may exceed the ideal reach for some users, making it less practical for day-to-day access to frequently used items in the kitchen or workspace. Thus, 44 inches is considered the most accessible and functional height for upper cabinets in residential or commercial settings.