So Koizumi’s furniture collection: Asphalt x Metal x Stone
In contemporary furniture design, materials are no longer chosen only for strength or appearance — they’re selected for the stories they carry. With the ‘As’ Furniture Series, Japanese designer So Koizumi reframes asphalt not as infrastructure, but as a material mediator, binding metal, stone, resin, and form into a quiet yet conceptually powerful collection.
Revisiting Asphalt Beyond the Road
Asphalt is typically associated with roads and urban surfaces, but historically, its role has been far more nuanced. Long before modern construction, asphalt was used as an adhesive — a binding agent that brought unlike materials together.
Koizumi draws inspiration from its early use during Japan’s Jomon period, where asphalt joined wooden shafts and stone arrowheads. In the ‘As’ series, asphalt returns to this original purpose.
For broader historical context on asphalt as a binding material (non-design, non-competitor reference), Encyclopaedia Britannica provides a clear overview of asphalt’s origins and uses.
Asphalt as a Visible Connector
Rather than hiding joints, Koizumi highlights them, allowing asphalt to visibly mediate between metal furniture elements, stone blocks, and resin forms. The result feels both ancient and forward-looking.
Furniture as Material Dialogue
The collection includes stools, side tables, and lighting pieces, each built through deliberate contrast. Cool metal meets heavy stone. Smooth resin encounters granular asphalt.
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Celebrating the Point of Connection
These intersections are intentionally exposed, turning structural joints into the visual language of the furniture. This approach reflects a growing movement in contemporary design where material honesty and process are central.
In-House Experimentation and Material Research
Many elements in the ‘As’ series are shaped through extensive in-house experimentation, including the asphalt itself. Koizumi refines texture, structure, and proportion to understand how materials behave independently — and how they transform in combination.
Architecture-Led Making
Visible traces of making remain on the surfaces: compressed edges, layered junctions, and subtle inconsistencies that reveal the furniture’s material journey rather than concealing it.
Exhibition Context: Gallery MATOYA, Japan
The ‘As’ Furniture Series was presented at Gallery MATOYA in Aichi, Japan, from 22–30 November 2025, alongside selected earlier works by So Koizumi.
Furniture as Sculpture
Displayed in a gallery setting, the pieces read as both functional furniture and sculptural studies in material connection.
A Contemporary Reinterpretation of Ancient Knowledge
By positioning asphalt as a mediator rather than a surface, Koizumi reframes how we think about connection in design — not as something to hide, but something to honor.
The ‘As’ series suggests furniture can bridge materials, eras, and disciplines, blending archaeology, architecture, and modern design into a unified language.
AD+L also supports experimental furniture brands through bespoke manufacturing and material sourcing
FAQs: ‘As’ Furniture Series by So Koizumi
1. What is the main concept behind the ‘As’ furniture series?
The series explores asphalt as a mediating material that connects metal, stone, and resin.
2. What types of furniture are included?
The collection includes stools, side tables, and lighting pieces.
3. Why use asphalt in furniture design?
Historically used as an adhesive, asphalt offers both structural and symbolic value as a connector.
4. Where was the collection exhibited?
At Gallery MATOYA in Aichi, Japan, from November 22–30, 2025.
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