Good bathroom design requires an understanding of ergonomics principles. An ergonomic design can be described as the one which is user-friendly. Ergonomic design focuses on maximising comfort for maximum no of people.
Basic Ergonomic Principle

A database has been prepared on the measurements and capabilities of the human population in relation to the use and design of workspaces. The two basic requirements are clearance and reach.

Working Height

Working height is an important element to consider when designing a comfortable workspace. Working height cannot be too high and too low.

Storage Principle
The basic storage principles to be considered are:

  1. Importance: most important items should be stored in the most advantageous location.
  2. Frequency of use: the most frequently used item should be in the easiest access location.
  3. Function: Items with similar functions should be grouped together.
  4. Sequence of use: Items commonly used in a sequence should also be grouped together allowing the operation to progress from left to right or top to bottom.
Adaptable Design
Adaptable design allows people to stay in their homes as they age. Designing for adaptability no longer means designing for people with a disability or special need. Our society ages continuously and as we grow we may have a greater chance of developing limitations or disabilities that may require home modifications.

A person may not require grab rails in bathroom at the age of 35 but the designer should be aware that they may require that at a later stage and should provide a provision i.e. a support structure within the wall cavity when the bathroom is built.

Universal Design
Universal design is a term used to refer to design which takes into account the majority of people regardless age and ability. This depends on simplicity and flexibility and not specific to any age group or disability:
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