Wave Layered Timber (WLT) is a new glue-free wooden construction technique, developed in Finland

WLT® offers an ecological, economical and aesthetically pleasing alternative to more traditional glue based solutions, even for demanding structural builds and challenging locations. The WLT® supports multiple methods of installation from a piece-by-piece approach to the installation of larger pre-constructed elements. WLT® enables a tight, homogenous, massive structure without chemical additives and is widely scalable. It can be used for thick or thin, curved or straight structures and is suitable for most types and grades of wood including the use of reclaimed material.



WLT® is a simple and universal construction solution that can be applied in modest working conditions as well as is suited for scaled production

WLT® provides a new simple system for the use of wood and promotion of massive wooden construction. WLT-technique allows an almost infinite range of solutions, dependending on the developed products’ specific needs - intended use, manufacturing and assembly technique, scale of production, raw material, locality.

The ‘single material principle’ of the WLT® building technique incorporates structural and insulation functions while creating ready-to-use external and internal surfaces. Perhaps the most unique characteristic of WLT lies in the possibility to have completely exposed, seamless structures and infinitely variable curved forms. This combination of celebrating the wooden material's natural beauty and ingenious construction supports the creativity of builders, engineers and architects alike. The manufacturing of WLT® is cost-efficient and it requires only simple tooling, providing a feasible path for supplying EWP’s for small and mid-size producers such as local saw mills or carpenters.

WLT® uncaps a significant share of the potential lying within the pool of existing timber entrepreneurs and material and we work to engage as a key approach to the future of wooden construction.

WLT® carries two patents and is a registered trademark since 2018.

Glue-free, massive, natural, free shapes
On-site assembly, Design for Deconstruction, 100% reusable and biodegradable
Local wood, production and skills
Simple manufacturing, easy to use, low- and no-graded as well as mixed wood