Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by specific context]
6. architectural elements
7. [openings and opening components]
8. openings (architectural elements)
9. [openings by form]
10. [doorways and doorway components]
11. doorway components
12. [doors and door components]
13. doors
14. [doors by form]

Additional parents:

1. top of the aat hierarchies
2. Objects Facet
3. Components
4. components
5. components by specific context
6. architectural elements
7. openings and opening components
8. openings
9. openings by form

Anotations

Scope note:

Floor-length wall openings consisting entirely or mostly of glass panels and hinged on one side so they may function as either doors or windows. For pairs of tall casement windows, use "French windows."