Tector powers moisture intelligence for BESTSELLER’s landmark timber and straw logistics centre
Tector joins BESTSELLER on one of Europe’s most ambitious construction projects
Tector is proud to support BESTSELLER’s new logistics centre in Lelystad, the Netherlands. Covering a 155,000 m² building footprint on a 287,000 m² site, the facility is set to become the world’s largest straw and timber-based logistics centre. combining mass timber, straw, concrete, landscaped biogenic areas, and a flat roof. A standout feature is the terminal’s extensive green roof. Its biogenic buildup retains moisture and shifts with the seasons, making continuous, reliable moisture intelligence essential. Tector’s system delivers the oversight needed to protect the structure and ensure long-term performance.
With the capacity to process over five million items per day using around 1,400 automated robots, the project represents a new benchmark in sustainable logistics construction.
BESTSELLER selected Tector for its proven ability to deliver actionable moisture intelligence at scale, supporting confident decision-making, preventive strategies, and long-term material performance.
On behalf of Bestseller, Lennart Lilleøre Krarup, AAA UNITED, Construction Project Manager:
"As Employer, we fully recognise the complexities involved in building with biomaterials and take these challenges very seriously. The solution provided by Tector helps us manage the risks effectively and ensures top-quality outcomes".
A moisture strategy that matches the project’s ambition
For a complex, large-scale building using biogenic materials, moisture management is far more than a routine task; it is essential to durability. Timber and straw require stable moisture conditions, and the Dutch climate adds additional variability.
The moisture strategy for BESTSELLER’s logistics centre was developed in close collaboration with Rambøll DK and Henning Larsen, combining engineering expertise with architectural insight. Tector’s continuous moisture detection system provides real-time insights, alerts, and data-driven guidance from construction through operation, enabling proactive management across the facility.
Delivering critical data for the sector
The scale and innovative material mix of BESTSELLER’s logistics centre will generate some of the most valuable moisture-behaviour data in Europe. The lessons learned here will inform future strategies for timber, straw, and hybrid structures across the continent, helping the wider industry build with confidence, resilience, and evidence.
Strengthening sustainable construction through intelligence
Tector’s system delivers more than monitoring. It provides:
Steve Marritt, CEO at Tector, says:
“We’re proud to support a project of this ambition. What we learn here won’t just benefit this single site. It will help the whole industry build with more confidence, more resilience, and more evidence. Moisture, data, and intelligence are now central to how biogenic-material buildings succeed at scale, and BESTSELLER is setting an important benchmark for the future.”