width of doorways regulation
ADA 404.2.3 Clear Width. Door openings shall provide a clear width of 32 inches (815 mm) minimum Clear openings of doorways with swinging doors shall be. measured between the face of the door and the stop, with the door open. 90 degrees Openings more than 24 inches (610 mm) deep shall provide.
1 Door Sizes. 2  Your guide to UK Door Sizes. 3  We explain below the advertisement the standard door sizes in the UK.  Part M of the UK building regulations covers 'Access and Facilities for Disabled 1  Use'. The required clear opening width is at least 775mm. This is measured between the door stile and the face of the door when it is opened at 90 degrees, as shown in the diagram above. This minimum requirement corresponds to a door 33 inches (919mm) wide, which would typically be 6ft 6 inches high.