Accessibility · Defined
Clear width
The unobstructed usable width of a passage or opening measured under the applicable criteria.
Why it matters
Nominal door-leaf size is not necessarily the available opening. Hardware, stops, projections, and the specified measurement position can affect the result.
In practice
A project example
A door schedule lists a leaf size, but the opening must still be checked as installed.
Technical references
General educational guidance from KOW Building Consultants. Examples are illustrative, not project records. The applicable contract, standard, program, and jurisdiction control the requirements for a specific assignment.