Bringing KLH® - CLT
to the North American market

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KLH® in US
since 2014.

KLH US Holding Corp. was formed in 2014 in Portland as a specialist supplier of cross-laminated timber panels; we provide consultation, design assist and material supply services to the construction industry.

Our team provide expertise in cross-laminated timber construction from design concept to material delivery; and our collaborative working approach with the whole project team enables us to develop sustainable and cost effective structural solutions when involved at the earliest stages of the design process.

Our in-house team, in collaboration with the client and project design team, take the initial set of architectural drawings to find a KLH 'timber solution' for the building.


An increased awareness of environmental and energy issues has increasingly brought wood to the forefront of modern building construction. And, with good reasons: timber naturally sequesters carbon and lends itself to energy-efficient designs.

Building with KLH® - CLT is therefore a valuable contribution to climate and environmental protection. With PEFC certification, and FSC certification available, KLH® can guarantee that the wood used in KLH® - CLT is sourced exclusively from sustainably managed forests.

Also, KLH® focuses on energy-saving and environmentally friendly production methods. Production is safe for our employees and has no effects harmful to human health whatsoever. KLH® - CLT has very low VOC emissions, and can be disposed of by burning and not leave behind any more residue than non-laminated timber.

Technical Approvals, Certificates and Eco-labels


As a project partner, we see our co-operative attitude as an essential part of our philosophy. As a team, we work across departmental disciplines, both internally and externally.


2019 A+Awards
Jury Winner

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News & Events


Timber Arch Vol. 04

On our journey through the world of timber architecture, we now find ourselves at the opening line of the fourth edition of Timber Arch. As in…


Fire protection test

KLH® – CLT has successfully passed the tests for the Australian and New Zealand markets in order to fulfil the fire protection requirements there.


Component catalogue

KLH Massivholz GmbH presents its latest innovation: the extended component catalogue, which is now available online. The revision of the catalogue aims to offer users an…


Tower of Wind

The project in the heart of Copenhagen pays homage to the world’s first meteorological observation station, the historic “Tower of Wind” in Athens.


Non-Fire Spread Classification

KLH® – CLT Exterior Walls receive Non-Fire Spread Classification in Poland


Timber Arch Vol. 03

We are all responsible for this one and future generations. If we want to combat climate change, we will have to use even more wood in…

At your service.

(971) 804-3794

KLH US Holding Corp.
1155 SW Morrison St.
Suite #200
Portland, OR 97205

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.