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SOLID – Norwegian natural stone for future urban spaces

21/05/26
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How can safety measures in public spaces be integrated in a way that protects people while enhancing the quality of the urban environment? In the bachelor project SOLID, Lykke Eline Trippestad Berg and Josefine Heggelund Vrålstad explore how leftover Larvikite can be transformed into furniture for public spaces that combines function, aesthetics and safety.

SOLID is a furniture concept for public spaces in Lundhs Blue Larvikite that explores how natural stone can contribute to safer, more inclusive public spaces. Developed by Lykke Eline Trippestad Berg and Josefine Heggelund Vrålstad, bachelor students in product design at Oslo Metropolitan University, the project addresses a timely question within urban design: how can safety be integrated into the urban environment without creating solutions that feel defensive, intrusive or detached from their surroundings?

Lundhs Blue is a Larvikite from Lundhs’ quarry in Tvedalen. Known for its natural weight, strength and durability, the stone is well suited to a design where safety is not added as a separate measure, but integrated as an inherent part of the product.

Traditional road barriers and security elements are often developed with protection as their sole purpose. In urban environments, this can result in solutions that appear harsh, temporary or uninviting. SOLID proposes a different approach. Here, the street furniture is the primary function, while security is embedded as a discreet and natural quality. The result is a solution that invites people to pause, sit and engage with the space, while also contributing to necessary protection without dominating the urban landscape.

Material use has been central to the project. SOLID is developed using leftover Lundhs Blue, a material that would otherwise often be used for aggregates or hidden construction purposes. By bringing this material into a visible, functional and long-lasting product, the project demonstrates how the qualities of natural stone can be given new value in public spaces.

Material samples played an important role in the process, offering insight into the stone’s visual character, structure and processing possibilities.
Photo: Lykke Eline Trippestad Berg

Early sketches from the project.
Photo: Lykke Eline Trippestad Berg

Early sketches show how the form of SOLID was developed with a focus on use, safety and the material’s inherent properties.
Illustration: Lykke Eline Trippestad Berg

Leftover Lundhs Blue has been brought into a visible and functional product for public spaces.
Photo: Erik Røseid

Lundhs Blue is characterised by a vivid play of color and a natural depth within the stone.
Photo: Erik Røseid

The process was exploratory, with sketches, models and prototypes serving as important tools throughout the development. Collaboration with Lundhs and Hustadvika Steinindustri was essential to the realisation of the prototype. Lundhs contributed raw material as well as knowledge of the stone’s origin and properties, while Hustadvika Steinindustri provided insight into processing possibilities and produced the prototype.

SOLID demonstrates how future street furniture can unite function, aesthetics, material awareness and safety. The project highlights Norwegian natural stone as a robust, long-lasting and beautiful material for more inclusive public spaces.

About the designers:

SOLID was created by students Lykke Eline Trippestad Berg and Josefine Heggelund Vrålstad, who study Product Design at Oslo Metropolitan University. With an interest in sustainable solutions, material exploration, and new applications for residual larvikite, they have developed a street furniture concept that shows how natural stone can be used in a more inviting and experiential way in public spaces.

The project began in the course Critical Reflection in Design Practice and was later developed further as a bachelor’s project. Throughout the process, they worked from idea and concept to finished prototype, with the aim of highlighting residual larvikite as a functional, durable, and aesthetic material.

Photo: Sonja Balci.