The Terna stool was developed as a compact seating solution designed to activate various public spaces in London. A maximum size of 450 mm in all directions was maintained to ensure portability and ease of movement. Solid European beech wood was used to construct the piece, which consists of three primary components: a circular seat and two identical legs. Sitting from any angle is permitted by the round form, while a central cutout handle was included to facilitate carrying. Simple assembly is achieved via four screws, with magnetic caps utilized to conceal the hardware. The design focuses on providing a brief perch for urban environments.