The corner that can open.

Published 1 November 2026 · WHV

A large window offers a view. A wall of glass that can move away changes the room itself. Vitrocsa’s Turnable Corner is interesting at the point where a familiar sliding panel stops travelling in a straight line.

A mechanism changes the boundary

The Swiss manufacturer describes a system in which panels move around corners and can be parked away from the opening. That allows an architect to reconsider where the visible boundary of an interior should be. The effect is architectural, but it begins with tracks, moving components and precise installation.

The WHV case is a physical improvement in the use of space. A terrace and living room may become more closely connected when conditions permit. It is not a universal prescription for glazing, nor does a disappearing visual corner mean that structural loads have disappeared.

Design for the closed position too

Assess the system with the project architect, engineer and an approved installer. Ask about weather exposure, drainage, thermal performance, operating effort and service access. The best version of this idea is the one that remains comfortable and dependable when the doors are closed as well as open.