Many psychotherapists believe that the nuances of psychotherapy cannot be captured by questionnaire-style observation, and prefer to rely on their own clinical experiences and conceptual arguments to support the type of treatment they practice.
Recommendation: The clear opening of a doorway should be at least 32. This would require a minimum 34 or 2'-10 door. For universal design, the minimum clear width is 34. If the existing structure precludes changing the opening then a minimum 24 or 2'-0 door is allowable. The door opening width is measured from jamb to jamb.
The OSHA [exit route] requirements, [ 1910.36(g)(2)], state that the minimum width of any way of exit access shall in no case be less than 28 inches. Stairways, which are not used as an exit or emergency, according to 1910.24(d), may have a minimum stair width of 22 inches.