knif modular shelving system

Knif Shelving by Studio RU:T

Knif is a modular shelving system that caters to customized solutions and diverse user needs in various concepts of interior design. Composed of metal construction and solid wood shelves, the system provides numerous combinations of heights and widths that can be upgraded over time. With a visually light and low-key appearance, this sturdy structure sets the stage for the user’s content. Quite a spacious shelf depth provides for exhibiting objects of diverse nature. Knif’s minimalistic flair makes it compatible with other interior elements while preserving its own character. The basic system is made of 6 modules delivered in sealed packages. Nine new combinations can be made only by adding two connecting elements. The basic module is available in black metal construction with solid wood shelves.

  • Shelves oak solid wood + lacquer or color lacquer RAL 9005
  • Frame powder coated steel rod Ø 18 mm + Ø 12 mm TREND 9
  • Legs steel Ø 18 mm + powder coating TREND 9



+ frames

+ shelves

+ legs

+ standard modules



+ solid wood finish options

+ metal frame color


Knif Shelving System Product Sheet


Studio RU:T

Studio RU:T is a multidisciplinary design studio founded by Tvrtko Bojić and Karla Paliska specializing in product and industrial design, visual communications, spatial concepts and on-site interventions. In their work, they focus on practical and sustainable solutions as well as experiments that question the concept of living. For Prostoria, Studio RU:T designed the Knif shelving system.



We tend to perceive furniture as something abstract, created on designers’ desks, and then produced, branded, and placed on the market by companies with different statuses and reputations. In fact, relations inside the contemporary globalized furniture industry are becoming more and more fragmented with less and less opportunity for complete dedication to synergies and collaborations… Prostoria, as a young company whose catalog already comprises some new icons such as the Polygon armchair and the Revolve transformable sofa, stands as an example of a different and more traditional approach based on the evolution from the local factuality and logical clustering of all actors involved in the production process.

The rapid development of Prostoria, formerly known as Kvadra, a company which has come a long way, from “starting from zero” to positioning itself as the leader and promoter of new ideas in only a few years time, is a story about the reintroduction of continuity both in Croatia and Central Europe, a region with vital but insufficiently recognized design scene and remarkable tradition and knowledge of the furniture industry. Those elements served as latent potentials that provided grounds for a continuation and had to be activated.

Since the beginning, Prostoria has been developing an integrative approach, functioning as a collaboration platform that nourishes and stimulates the continuous exchange of knowledge and experience between all the actors participating in the production of furniture. A dynamic workshop ambiance has been created offering opportunities mainly to young designers to explore their ideas in excellent conditions and bring them to the highest level of design, functionality, and technological artisanship. Many products have been developed over long periods of time surpassing a number of iterations until reaching their final form, which would be impossible without adequate support combining the contemporary technology and meticulous craftsmanship and handwork of the highest quality. Predominantly local materials are used, especially solid wood, and most of the production takes place within the company itself or in collaboration with local cooperatives.

While the company’s catalog also offers furniture based on tested models, Prostoria shows strategic and even passionate dedication to research-based design, convinced that authenticity has its place on the market but presents a special challenge in the times when it seems almost impossible to create truly innovative and fresh concepts. For that reason, Prostoria’s social responsibility and specific position have to be observed as a contribution to the evolution of design and readiness to take the risk in order to reach new values for the benefit of users and the culture. Thus, Prostoria stands as a project inside of which designers grow together with the company on the grounds of mutual trust and shared goals.