thresholds

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  4. Components (hierarchy name)
  5. components (objects parts)
  6. [components by specific context]
  7. architectural elements
  8. [openings and opening components]
  9. openings (architectural elements)
  10. [openings by form]
  11. [doorways and doorway components]
  12. doorway components
  13. thresholds
Scope note
Strips fastened to the floor beneath a door, usually required to cover the joint when two types of floor material meet; may provide weather protection on external doors; for the lower sides and bottom of doorways, use "doorsills."
thresholds
Accepted term: 05-Jan-2026