Grown, used, returned: mycelium furniture enters the home
Walk into a furniture showroom today and you might find a stool that was alive a week ago. Designers working with mycelium — the dense, thread-like network that runs beneath a mushroom cap — are growing chairs, lamps and side tables in moulds the way other manufacturers mould plastic. The result feels like cork, weighs like foam, and quietly disappears into the garden once its useful life is done.
Mycelium furniture sits inside a wider pivot in the design industry toward biofabrication, circular materials and pieces that do not require a skip bin at the end of their lives. What follows is a look at how the material is grown, who is already working with it, what it can and cannot do, and why Australian studios are paying close attention.
What mycelium actually is
Mycelium is the vegetative body of a fungus, a fine web of hyphae that grows through soil, wood and other organic matter in search of nutrients. In nature it can stretch across hectares, linking trees, swapping carbon and quietly shaping forests. Designers have learned to capture that growth in a tray.
In the studio, the process begins with a clean culture of fungal tissue. The mycelium is fed a substrate of agricultural waste and packed into a mould shaped like a stool, a panel or a lampshade. Over five to fourteen days the network colonises the substrate, binding it into a solid block. The piece is heat-treated to halt growth and dried, leaving a rigid, lightweight form ready for finishing.
Most substrate choices are local agricultural byproducts, which keeps the cost modest and the carbon footprint tight. In several facilities the cultivation cycle now captures more carbon than the energy used to run it, a claim manufacturers are formalising through third-party audits.
How a chair grows in a mould
The most common fabrication route is often called grow-in-place. A designer pours a slurry of substrate and live mycelium into a heated form, lets the network knit it together, then pops the finished shape out. The technique suits forms that traditional cabinetry struggles with: curved shells, hollow pods, irregular geometries that read as if carved rather than built.
In London, Studio Sebastian Cox has produced a chair and a series of cabinets using mycelium bound to British-grown hemp. In Italy, Mogu has been growing acoustic tiles and floor coverings for several years. At Dutch Design Week and during Milan Design Week in 2023, several studios including the research arm of Tom Dixon unveiled mycelium lighting and small accessories. The pace of presentation suggests the material is moving from research project to commercially viable product faster than many predicted.
Australian studios are watching closely. RMIT in Melbourne has run workshops where students grow small stools in a single afternoon, and design schools in Sydney have started adding biofabrication to their material libraries.
Substrates and growth windows seen in current studios
- Hemp hurds, colonised in roughly five to seven days, with a fine pale finish
- Sawdust from plantation timber, colonised in seven to ten days, with a warmer tone
- Straw or grain husks, colonised in around two weeks, giving a more textured surface
- Bagasse or corn fibre, often used for flatter panels and acoustic tiles
Why the end-of-life story matters
Traditional furniture is hard to retire. Upholstered pieces mix foam, fabric, timber and metal in ways that recycling facilities struggle to separate. Most end up in landfill, where foam can take more than a century to break down and timber is often glued with adhesives that resist decomposition.
A mycelium piece is built to rot. Manufacturers typically recommend breaking the item into chunks and burying it in a backyard compost, where the fungal cells — already primed for decay — finish the job in roughly four to six weeks. Some studios have shown pieces dissolving in a bucket of water within days. None of the byproducts are toxic, and the soil left behind is reportedly enriched with organic matter.
This is the heart of the circular economy argument. A chair that becomes soil again is no longer a disposal problem. It is, in the language of designers, a temporary loan from a forest.
Australian studios taking notice
Australia has long had a strong bench of independent designers, and several are now exploring biological materials. Melbourne Design Week, held each year at the end of March, has featured talks on mushroom leather and mycelium composites. Sydney Indesign has hosted pop-ups showing locally grown pieces alongside imported work from Mogu and Grown.bio.
Established brands are also investigating. Jardan, the Melbourne maker known for its timber and upholstery work, has spoken publicly about a shift toward regenerative materials, while Tait in Melbourne has begun to fold biophilic principles into its outdoor collections. These are early steps rather than full mycelium launches, but the direction of travel is clear.
The local market helps. The federal National Waste Policy, alongside state-level bans on problematic single-use plastics, has nudged designers and consumers to rethink what a piece of furniture owes the planet after it is no longer wanted. Eco-conscious retail channels — Cult Design in Melbourne, Space Furniture in Sydney and Domo in Brisbane — have built reputations for trialling new sustainable labels before they hit the mainstream.
Where mycelium still struggles
It is not a cure-all. The material is sensitive to prolonged moisture and direct weather, which limits outdoor use unless it is heavily coated or sealed. Load-bearing tests suggest it works well for side chairs, panels and lamps but is less reliable for the high-traffic seating found in airports, schools and cafés. Surface hardness is another constraint: a mycelium surface marks more easily than a veneered one.
Scale is also unresolved. Growing thousands of chairs a week requires industrial hygiene, climate-controlled rooms and reliable substrate supply chains. Companies such as Ecovative in the United States have invested heavily in this, but in smaller markets like Australia the infrastructure is still thin. Custom designs are common; mass-market equivalents are not yet.
Regulation matters too. Building codes, fire-rating standards and warranty expectations have all been written with timber, foam and metal in mind. A material designed to compost must still pass the safety tests expected of any other furnishing, and the certification work for that is only just beginning.
Questions worth asking before bringing a piece home
- Where did the substrate come from, and how far was it shipped?
- How was the piece dried, sealed and finished?
- What does the manufacturer recommend at end of life, and is that claim verified?
- Does the piece carry fire-rating documentation for domestic or commercial use?
Designing for the burial
What makes the genre interesting is the brief itself. Designers are no longer asked to deliver a beautiful object; they are asked to deliver an object that knows when to leave. That has changed the conversation in studios from durability to planned obsolescence, from finish to feedback.
Some makers now include a printed guide with each piece, explaining how to break it down and bury it. Others invite owners to register their item online so the manufacturer can track how long it lasts. These moves read as small, but they reshape the relationship between maker, object and user. A chair becomes a service that ends with a shovel.
In a country where outdoor living, sustainability messaging and a deep appreciation of natural materials already meet on the showroom floor, the fit feels unusually tidy. Australians have long been early adopters of eco-design — from rainwater tanks to passive solar homes. Mycelium furniture is simply the next room in that lineage.
The category will not replace timber, steel or upholstery, and it does not need to. The next step for buyers, designers and retailers is to ask sharper questions about origin, finish and end-of-life guidance, and to push manufacturers to publish the answers. The quiet promise of the material is that, one day, the most responsible piece of furniture will be the one that is willing to disappear.
