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.
When Metric units were made compulsory in Australia , the common standard for interior household doors was set at 820mm which will now apply forever. The opening for a standard door is about 4mm extra, and the 'Door Stops' which are always 10 or 12mm thick each side, reduces the width of the opening to about 800mm .