What is the recommended width for a corridor designed for three people walking side by side?

A corridor designed for three people to walk side by side requires sufficient width to facilitate comfortable movement without causing obstruction. The recommended width of 1800mm is based on ergonomic considerations, ensuring that three adults can walk together easily, with ample space for any variations in body size or movement.

This width takes into account the average shoulder width of adults and allows for some personal space, minimizing the likelihood of bumping into each other. It also accommodates potential additional factors such as the use of mobility aids or when carrying items that may require extra space.

Narrower widths, such as 1200mm, 1500mm, and 1650mm, may not provide enough room for three individuals to walk side by side comfortably, especially in situations where the corridor may be congested or where individuals might be moving at different paces. Such widths could lead to discomfort and potential bottlenecks, particularly in high-traffic areas. Therefore, 1800mm is the most suitable choice for a corridor intended for this specific use case.