A logical relation, sequence, or association.

The word connection has many connotations in interior design. It can refer to sequence, or the act of moving from exterior to interior, and the transitional spaces of lobbies, foyers, elevators and stairs that facilitate movement through a building or interior.

Connection also applies to the physical and visual relationships between spaces and rooms. This can be achieved by incorporating design elements like color and texture, such as using a consistent base color as the start of a palette. Similarly, the consistent use of finishes and styles can foster associations between rooms or pieces of furniture, which can contribute to a sense of coherence in a project. Physical elements in a space, an open stair, an aperture, and other openings, or the use of double-height volumes to connect between floors, provide literal transitions between rooms and functions.

More abstractly, connection can be considered the link between old (the existing condition) and new (the designed intervention). Through coordination with the architecture of the project, and careful integration of new partitions, furnishings, and built-in elements, and material selection and styling, the designer can bridge eras and typologies.

Another important connection in interior design is its relationship with nature. Through the incorporation of plants, the selection of natural materials, and the strategic use of water features and natural light, the designer can provide a connection to nature, and occasionally to outdoor spaces themselves.

Finally, interior design can foster an emotional or sensory connection, which elicits an association to a memory. This can be achieved through the design of lighting, the development of a color story that affects the general mood of a space, or through the integrations of elements during styling—photographs, mementos, art, or keepsakes.