A new engineered wood product, developed by US-based materials innovator InventWood, presents a significant advancement in sustainable building materials. Called Superwood, the product maintains the natural appearance and tactile qualities of traditional timber while offering mechanical and environmental performance that significantly surpasses conventional wood and even outperforms steel in strength-to-weight ratio.

Engineered at the Molecular Level

Superwood is the result of a scientific process that modifies wood at the cellular level. Developed under the leadership of Prof. Liangbing Hu at the University of Maryland, the process involves removing lignin—a structural component in wood—and compressing the remaining fibres under specific conditions. This method creates a high-performance biogenic composite that is up to 12 times stronger and 10 times tougher than untreated wood. The material achieves a strength-to-weight ratio nearly 10 times greater than that of steel.

High Performance in Challenging Conditions

In addition to its structural strength, Superwood is engineered for durability and climate resilience. It is fire-resistant, carrying a Class A rating (ASTM E84) and featuring self-extinguishing properties. The material is also resistant to water, fungi, insects, dents, and scratches. These qualities make it particularly well-suited for exterior façades, structural panels, and landscape applications, as well as demanding indoor environments.

Aesthetic Qualities with Design Flexibility

Despite its enhanced performance, Superwood retains the tactile warmth, grain, and natural appearance of traditional timber. The surface accepts water-based stains, paints, and primers, enabling broad design flexibility. It integrates well with both modern and classic design languages, making it a versatile choice for architects, interior designers, and product developers.

Supporting Circularity and Sustainability

Superwood is made entirely from sustainably sourced wood and contributes to carbon sequestration by locking in atmospheric carbon throughout its lifespan. Its durability translates into longer product cycles, reducing resource use and environmental impact. InventWood prioritises domestic production to avoid emissions from long-distance transportation and to support local supply chains.

From Laboratory to Market

Backed by a USD 15 million Series A funding round, InventWood is preparing for commercial production between July and September 2025. The company also recently partnered with Intectural, a distributor of high-performance architectural materials, to launch Superwood across North America. In total, InventWood has raised over USD 50 million, with funding from institutions such as the U.S. Department of Energy and the Department of Defense.

Applications in Architecture and Design

Superwood is ideal for a wide range of applications, including residential construction, commercial architecture, educational facilities, and infrastructure projects. Its strength, fire resistance, and visual appeal make it particularly suitable for façades, cladding, structural components, and furniture. It offers a sustainable alternative to resource-intensive materials like steel and aluminium, aligning with the needs of climate-conscious design.

Source: Interesting Engineering, InventWood
Photos: InventWood