All information about
cross laminated timber

Learn more


KLH® cross-laminated timber is made from spruce boards stacked atop each other in alternating right-angle directions. The boards are bonded using a formaldehyde-free adhesive with under high pressure to form large-format building elements.

CLT panels are used as wall, floor, and roof elements in mass timber buildings. The cross-wise structure of the longitudinal and transverse board layers provides excellent dimensional stability of the panel. Because of the large number of options for different numbers and thicknesses of layers available, specific project requirements can be closely matched to the structural capacity of an appropriate KLH® panel , thus saving material and, consequently, costs.

The lumber used in KLH® - CLT is dried to a maximum moisture content of 12% (+/- 2%). Not only does this add to the dimensional stability and overall quality of the finished product, the possibility of decay is effectively eliminated. The lumber boards used are sourced from sustainably managed forests, with either PEFC or FSC® C119602 certification available.

Production in
modern facilities.

In our modern production facilities, KLH® - CLT is custom produced for each project order. The thickness of the panels and the number and thickness of plies used depends on the structural and fire-protection requirements. On the basis of approved plans, panels are cut using state-of-the-art CNC machines. Panels are delivered directly to the construction site on a just-in-time basis, either by truck or in a shipping container. When needed, they are raised into place by the contractor using a crane according to a carefully prescribed sequence.

Technical Approvals, Certificates and Eco-labels


Learn more


Projects from different
categories and countries

Refurbishment & Extensions

Timber Lofts

A new four-story building and the renovation and reuse of an existing five-story industrial building

Multi-storey Residential Buildings

Le Haut-Bois

The two structures, a 9- and a 6-storey building, are connected by the unique staircase that is both open on one side and glazed on the…

Refurbishment & Extensions

The new house

Update for a 1980s house


Hotel Green Solution House 2.0

A prototype for sustainable construction


The Ritz-Carlton

Luxury in an exceptional resort

Multi-storey Residential Buildings


World´s tallest Mass Timber hybrid Building

Refurbishment & Extensions

55 Southbank | Adina Apartment Hotel

The world’s tallest mass timber vertical extension

Public Buildings

The Barcelona Library


Kulturhof Stanggass

Multi-storey Residential Buildings

Cirerers Building

A building where community takes precedence over individual needs and is environmentally friendly at the same time. This is how a sustainable future can be created.

At your service.

(971) 804-3794

KLH US Holding Corp.
c/o Schumann Burghart LLP
1500 Broadway, Suite 1902
New York, New York 1003

We provide thoughtful design solutions that are structurally and material efficient as well as ecologically appropriate, focusing on a healthy world for future generations.

Sergey David | Technician

I love the beautiful and elegant design solutions that are possible with mass timber. CLT is structurally efficient and naturally fire resistant, and is often the best choice for demanding construction schedules and challenging project sites.

Howard Thurston | Head of Engineering

Our team continually strives to provide the very best quality product, supported by a professional and personalized process. We feel integrity is critical to a successful project and a beautiful end result.

Michael Hahn | Design Director

You have the vision. We have the knowledge and material to make it a sustainable mass timber reality.

Sebastian Popp | Technical Director

We are there
for you.