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.
Standard Inside Door Sizes. The most common width for interior doors is 32 inches. The International Residential Code does not require interior doors to be as large as the main entry door in a house, but it still sets minimum height and width requirements. Thus, most standard interior doors are the same height, and come in widths ranging from 28 to 32 inches.