Definition

Noun: A door that is located inside a building and is used to separate rooms or areas within that building, as opposed to an exterior door which leads outside.

Usage

An interior door is a functional and architectural element used for privacy, sound reduction, and space division inside a home, office, or other structure.

Examples

• The interior door to the study was closed for privacy during the meeting.
• We are replacing all the old hollow-core interior doors with solid wood ones.
• Please close the interior door to keep the heat in this room.

Advanced Usage

• Specification Context: The term is often used in construction, renovation, and design specifications to distinguish between door types.
  • The building code has different requirements for fire ratings on interior doors versus exterior doors.

Variants and Related Words

• Room door: A more casual term for an interior door.
• French door: A type of interior door with glass panes, often used for patios or between rooms.
• Pocket door: A type of interior door that slides into a wall cavity.
• Barn door: A style of interior door that slides on a track mounted outside the wall.
• Exterior door (antonym): A door designed for an outside entrance, typically more robust and weatherproof.

Synonyms

• Internal door
• Inside door

Related Phrases

• Pre-hung door: An interior door sold already mounted within its frame, ready for installation.
  • Installing a pre-hung interior door is often easier for DIY projects.

Noun

1. a door that closes off rooms within a building