Sivuseiniin

Sivuseiniin is a Finnish term used in architecture and interior design to describe movement into or placement within the side walls of a building. It is the illative plural form of sivuseinä, a compound of sivu- "side" and seinä "wall." The form is common in technical texts, construction drawings, and project specifications to indicate actions directed at the side walls, such as embedding fixtures, drilling openings, or routing cables.

Usage and meaning

Sivuseiniin denotes action toward or inside the side walls. It contrasts with other cases that describe location inside the walls (sivuseinissä, "in the side walls") or onto the wall surfaces (seinille, "onto the walls"). In practical terms, writers use sivuseiniin to specify that installations or alterations are made specifically into the side walls rather than on their exterior surfaces or in adjacent spaces.

Examples

- Valaisimet asennettiin sivuseiniin. (The lights were installed into the side walls.)

- Johdot vedettiin sivuseiniin. (The wires were run into the side walls.)

- Uudet kiinnikkeet rakennettiin sivuseiniin. (The new fasteners were built into the side walls.)

Notes

Sivuseiniin is primarily a technical or construction-related form and may be unfamiliar outside Finnish-language architectural contexts. In everyday speech, people more commonly refer to actions performed “on the wall” or specify the exact location without using the illative form. See also sivuseinä and Finnish illative case for related grammar.