Stora Enso’s Bad St. Leonhard Mill Reaches One Million Cubic Meters of Cross-Laminated Timber Production

Stora Enso’s Bad St. Leonhard Mill Reaches One Million Cubic Meters of Cross-Laminated Timber Production

(IN BRIEF) Stora Enso’s Bad St. Leonhard mill in Austria has become the company’s first site to surpass one million cubic meters of cross-laminated timber (CLT) production as of October 2025. Established in 1885 and the first Stora Enso facility to produce CLT in 2008, the mill has supplied sustainable timber for around 15,000 projects worldwide. With an annual capacity of 80,000 m³, the site has refined its production through innovation, training, and technological investment. Notable projects include the 20,000 m³ Arboretum development and even a submarine exhibition build. The achievement highlights Stora Enso’s commitment to sustainable construction and continuous improvement in engineered wood production.

(PRESS RELEASE) HELSINKI, 5-Nov-2025 — /EuropaWire/ — Stora Enso has announced a remarkable achievement at its Bad St. Leonhard mill in Austria, where total cross-laminated timber (CLT) production has surpassed one million cubic meters as of October 2025. This milestone marks the first time any Stora Enso site has reached such a volume, underscoring more than a decade of innovation, teamwork, and dedication to sustainable construction solutions.

Founded in 1885, the Bad St. Leonhard site has been an integral part of Austria’s wood industry for over a century. It became the first Stora Enso facility to produce CLT in 2008, pioneering the company’s entry into engineered wood manufacturing. Since then, its products have been used in approximately 15,000 projects worldwide, ranging from residential buildings to large-scale commercial and public developments.

“Reaching one million cubic meters of CLT is not just about numbers,” said Martin Nistelberger, Mill Director at Bad St. Leonhard. “It’s a story of continuous improvement, close collaboration, and the dedication of our entire team.”

Continuous Progress Through Innovation

Over the years, the mill has advanced its CLT operations through ongoing training, equipment upgrades, and process optimization. With a maximum annual capacity of around 80,000 m³, Bad St. Leonhard has steadily enhanced efficiency while maintaining exceptional quality standards.

“We’ve improved production step by step — by developing our people, upgrading equipment, and learning from experience,” explained Markus Baumgartner, Production Manager CLT at Stora Enso Wood Products. “Our strong connection between production and sales ensures we fully understand customer needs and can respond quickly with the right solutions.”

From Buildings to Submarines

CLT produced at Bad St. Leonhard has contributed to thousands of projects across Europe and beyond. Among the most notable is the Arboretum project, which utilized roughly 20,000 m³ of timber, making it the mill’s largest single project to date. In a more unusual example of the material’s versatility, CLT panels from the mill were once used to construct parts for an exhibition submarine.

“As we like to say,” added Christoph Koitz, Director of Building Solutions Supply Chain at Stora Enso, “CLT can be used for everything — from houses to submarines!”

Building the Future, One Cubic Meter at a Time

Looking ahead, the Bad St. Leonhard team remains focused on further innovation, product development, and sustainable material use. “This milestone shows what’s possible when people care about what they do,” said Nistelberger. “We’re proud of what we’ve achieved and will keep building on it — one cubic meter at a time.”

This production landmark reinforces Stora Enso’s position as a global leader in engineered wood solutions and its ongoing commitment to developing renewable building materials that help decarbonize the construction industry.

For further information, please contact:
Hanna Rutanen
SVP Communications
tel. +358 41 507 1361

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Jutta Mikkola
SVP Investor Relations
tel. +358 50 544 6061

SOURCE: STORA ENSO OYJ