A Short History of Modular Shelving: 1949 to Today

Modular shelving feels like a contemporary idea, which is a compliment to how well its inventors aged. The concept is three generations old: the notion that furniture should be a system of parts on a grid, extended and rebuilt instead of replaced, was worked out between 1949 and the early 1980s by a handful of designers whose systems are still in production. Knowing that history is useful for a practical reason – the questions those designers answered are exactly the questions worth asking before buying any system today.

Four systems, four answers

In 1949, the Swedish designers Nisse and Kajsa Strinning won a competition run for the Bonnier publishing house with String: wire side ladders and shelves hooked between them, so light it almost drew itself onto the wall. It made shelving democratic – cheap to ship, simple to extend, visually silent. String has been in production ever since, and its answer to the system question was lightness.

In 1960, Dieter Rams designed the 606 Universal Shelving System for Vitsœ: aluminium E-tracks on the wall, shelves cantilevered into them, everything placeable and replaceable along a continuous rail. The 606 became the reference for the ethics of the idea – a company that encourages customers to buy less and extend later. Its answer was continuity: the system as a decades-long relationship rather than a purchase.

From 1963, the Swiss engineer Paul Schärer and architect Fritz Haller turned an architectural building system into furniture. USM Haller, patented in 1965 and later taken into the collection of the Museum of Modern Art, joins chromed tubes with ball joints into a strict spatial grid filled with lacquered steel panels. Its answer was rigour – furniture as small architecture, with the precision and the presence that implies.

And in 1982, Peter J. Lassen founded Montana in Denmark: lacquered modules in dozens of sizes and, today, more than forty colours, composed like paintings on a wall. Montana's answer was expression – the module as a pixel, the shelf as a composition.

What sixty years of systems teach a buyer

Strip away the aesthetics and the four classics agree on a short checklist, which doubles as a test for any newer system, ours included. First: is there a real grid? A system lives or dies by a dimension that repeats – String's ladder spacing, the 606 track pitch, USM's sphere-to-sphere module, Montana's unit sizes. If parts don't share a grid, extension is marketing. Second: are parts available separately, years later? Every one of the classics sells single shelves and single components today, for furniture bought decades ago. Third: does disassembly survive? A system that can be taken apart and rebuilt without damage is a different object from one assembled once. And fourth: does the company itself expect the furniture to outlive fashion? Continuous production since 1949, 1960, 1965 and 1982 is the strongest quality signal in the industry: longevity you can look up.

The lineage has a German strand that gets told less often. interlübke has built in Rheda-Wiedenbrück since 1937 and translated the system idea into planned wall units; younger systems such as mocoba and Cubit carried it into stackable and hand-lacquered modules; and the configurator generation finally moved the composing into the browser. Each of these stations answers the same four questions, just with different means.

Where KUUDU stands in this lineage

Every newer system, including this one, works inside questions the classics defined. KUUDU's grid is a 75-centimetre section; its parts list is the same for a shelf bought today and one extended in five years; it assembles with screws and comes apart the same way; and its material answer, oak veneer on powder-coated aluminium, oiled and openly built, sits deliberately between the metal systems and the lacquered ones: wood where you touch, metal where it carries.

Construction and material, system by system: USM Haller, Vitsœ 606, String and Montana each have their own page, and the newer configurable systems are collected in the applications overview.

Sixty years in, the modular idea has outlasted every furniture fashion that ran alongside it. The systems that carried it did so by taking the same few questions seriously: a real grid, available parts, reversible assembly, and a company planning in decades. Everything else is surface – which, as the classics prove, may be steel, wire, lacquer or wood, and age well in all four.