Since Antiquity, construction materials have oscillated between raw nature and human invention. Wood, stone, concrete, steel… each has shaped its era according to its properties. But a newcomer, born from a simple tree trunk, could soon upset this balance. By combining cutting-edge engineering and plant material, super wood presents itself as an alternative capable of competing with the giants of the industry.
How ordinary wood becomes stronger than steel
Transforming an ancestral plant material into a material more resistant than steel is InventWood's challenge. This American company is based on the work of researcher Liangbing Hu at the University of Maryland. As early as 2017, his team had proven that a chemical process could strengthen the cellulose in plant fibers. According to CNN, this treatment involves removing some of the lignin and then hot compressing the wood. Thus, the structure collapses, the fibers tighten, and the material becomes stronger than many metal alloys.
This revisited version of wood, called Superwood, retains the appearance of the natural material but increases its strength twenty-fold while reducing its weight. His behavior is surprising. In fact, it can be worked like wood, but supports the loads and constraints of an industrial metal.
The company, now based in Frederick, Maryland, has filed more than one hundred and forty patents relating to this material. Its general director, Alex Lau, estimates that the first applications in construction will make it possible to create structures up to four times lighter than with conventional materials, while remaining stable in the face of seismic tremors.
Super wood versus giants: concrete, steel and aluminum
The innovation is not intended to replace classic wood, but to compete with the pillars of modern construction. According to The Times of India, CO₂ emissions generated during the manufacturing of superwood are around 90% lower than those of steel. This impressive ratio places this material at the heart of an urgent ecological transition, while concrete and steel together represent nearly 7% of global emissions depending on the sector.
The super wood is resistant to fungi and insects, and obtains excellent results in fire resistance tests. Importantly, it does not rely on glues or synthetic composites, as traditional engineered woods do. The transformation occurs at the molecular level, within the cellulose itself.
Liangbing Hu, now a professor at Yale, sees this approach as a way of “doing better with nature.” His laboratory also explores other avenues, from transparent wood to flexible wood, always seeking to combine performance and durability. This work is based on a strong idea. Sustainable materials will only prevail if they truly compete with those of oil or metal. In other words, they must offer the same performance while limiting the environmental impact.
What this material could change for our homes and our cities
For the moment, InventWood favors exterior uses such as cladding, terraces or facades. However, some architects are already imagining much more ambitious projects. They evoke lightweight floors, load-bearing walls or even entire buildings made of new generation wood. According to Philip Oldfield, a professor at the University of New South Wales, these materials pave the way for larger, more durable structures. At the same time, they would store carbon over the long term in cities.
This perspective joins the global trend of “tall wood”, illustrated by towers under construction in Milwaukee or Tokyo. In this movement, superwood could play the role of accelerator. Its density and lightness facilitate transport and reduce the necessary foundations, two decisive factors for sustainable construction.
Despite its higher initial cost, this material offers a benefit that is hard to ignore. It combines the natural beauty of wood with the mechanical power of metal. As its production increases, it could become one of the symbols of a new pact between nature and technology, where the built cities of tomorrow may breathe to the rhythm of forests.
With an unwavering passion for local news, Christopher leads our editorial team with integrity and dedication. With over 20 years’ experience, he is the backbone of Wouldsayso, ensuring that we stay true to our mission to inform.
