About us

KLH Massivholz GmbH is the market leader for large-format cross-laminated timber elements, which are used and distributed worldwide as constructive wall, ceiling and roof elements under the brand name "KLH® - CLT".

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Cross
laminated
timber

Newly published -
Timber Arch
Vol. 03

A new
Edition of Timber Arch

In our new edition of the Timber Arch publication, we present a selection of excellent architectural projects that have been developed thanks to the editorial support of the architectural offices.

The publication contains a special collection of KLH® projects that show the versatility, uniqueness, harmony and beauty of solid wood as a building material. No matter whether it is a cosy single-family house, a modern, environmentally friendly school or an exclusive hotel building - KLH® - CLT makes every project special and inviting.

Cross-laminated timber with its versatile application as well as its lightweight and high degree of prefabrication sets unbeatable trends, providing a high level of freedom in architecture. All this is what makes wood the building material for our sustainable future.

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2nd KLH
CLT FACTORY

In 2019 KLH Massivholz Wiesenau GmbH has started building of new cross laminated timber plant in Wolfsberg in Carinthia (Austria). The commissioning of the plant with an annual capacity of around 150,000 m³ in the final expansion stage is planned for mid-2020.

This project is co-financed by the ERDF European Regional Development Fund.
 
 
The latest production technology used in the new plant will safeguard the competitiveness and market share of the Johann Offner Group in the field of cross laminated timber, increase the degree of prefabrication of the cross laminated timber produced and create up to 83 new jobs in the structurally weak Wolfsberg region.

References

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

Hotels

Hotel Green Solution House 2.0

A prototype for sustainable construction

Hotels

The Ritz-Carlton

Luxury in an exceptional resort

Multi-storey Residential Buildings

Ascent

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

Hotels

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.

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KLH designer –
Without
registration,
anytime,
anywhere

KLH DESIGNER

ARCHITECTURAL | STRUCTURAL | ECO

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Product Advantages

Where the effectiveness of wood meets modern technologies – building with KLH® has many advantages.

FREEDOM IN ARCHITECTURE AND SPACE CONCEPT

SIMPLE PLANNING OF INDIVIDUAL BUILDINGS

ENVIRONMENTALLY SUSTAINABLE BUILDING MATERIALS

HEALTHY, COMFORTABLE INDOOR CLIMATE

CLIMATE-FRIENDLY AND CO2 NEUTRAL

ELEMENTS CONTROLLABLE IN TERMS OF BUILDING PHYSICS

CE-CERTIFIED AND TESTED FOR ENVIRONMENTAL IMPACTS

SHORT CONSTRUCTION PERIOD AND DRY CONSTRUCTION METHOD

HIGH DIMENSIONAL ACCURACY DUE TO CNC-CONTROLLED CUTTING

LASTING VALUE AND ENERGY-EFFICIENT

HIGHLY STABLE COMPONENTS FOR WALLS, CEILINGS AND ROOFS

COMBINABLE WITH ALL MATERIALS

EPD
in acc. with
ISO 14025
& EN 15804

Environmental
Product Declaration

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Events & Exhibitions

16. Europäischer Kongress (EBH)

17.10 bis 18.10.2023

16th European Conference
Urban Timber Construction
Kongresszentrum Gürzenich | Booth 26
Cologne, Germany

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BYGG REIS DEG

18.10 bis 21.10.2023

Scandinavian Building Exhibition
Norges Varemesse
Hall D | Booth D02-36
Lillestrøm, Norway

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Building Green

01.11 bis 02.11.2023

Focus on sustainability within architecture and building
Forum København | Booth 122
Copenhagen, Denmark

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27th International Timber Construction Forum

29.11 bis 01.12.2023

From practice – for practice
Congress Innsbruck
Austria

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4DESIGN DAYS

25.01 bis 28.01.2024

Architecture | Design | Interior design
ICC Katowice
Booth 21
Poland

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DACH+HOLZ International

05.03 bis 08.03.2024

Green Building: Building Envelope & Timber Construction
Exhibition Centre Stuttgart
Germany

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International Mass Timber Conference

26.03 bis 28.03.2024

The largest gathering of mass timber experts in the world
Oregon Convention Center | USA

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News & Events

News

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…

News

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.

News

Non-Fire Spread Classification

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

Publications

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…

News

Sustainability in logistics

The KLH plant in Bad St. Leonhard, Carinthia, not only has the most modern automated production line, but also a very well-developed railway infrastructure with its…

News

Förderpreis.nachhaltig 2021

THIS YEAR, KÄRNTNER SPARKASSE AG’S SUSTAINABILITY AWARD GOES TO KLH MASSIVHOLZ WIESENAU GMBH AND WEISSENSEER HOLZBAUSYSTEMBAU GMBH

Publications

Timber Arch Vol. 02

Special times require special attention. Treat yourself to some time out and enjoy the following pages with us. Thanks to the editorial support of the respective…

News

AITIM Quality Mark

KLH holds the AITIM Quality Mark – SCA nº 31-01 for the Manufacture of Cross-Laminated Timber since 2007

News

Nordic Swan Ecolabel

In addition to the EPD (Environmental Product Declaration), KLH Massivholz GmbH has now also received the Nordic Swan Ecolabel (Licence No. 3010 0030), one of the…

News

Project “KLH Wolfsberg”

Sustainability is a way of life at KLH Massivholz GmbH. The opening of what will be the most modern cross-laminated timber plant is planned for summer…

News

Environmental Product Declaration

EPD in accordance with ISO 14025 & EN 15804

Publications

Timber Arch Vol. 01

The collection of KLH projects presenting the modern, individual timber construction architecture and the versatility of wood as a building material.

Technical Approvals, Certificates and Eco-labels

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in your area.

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We are there for you.
+43 3588 8835
office@klh.at
Sites:
KLH Massivholz GmbH
Gewerbestrasse 4
A-8842 Teufenbach-Katsch KLH Massivholz Wiesenau GmbH
Wiesenau 2
9462 Bad St. Leonhard

Together with our customers we are contributing to an eco-friendly and sustainable future– this drives us and makes us proud.

Marco Huter | Managing Director

With innovations and continuous development of production technology, we are always focused on the needs of our customers. Our responsible handling of the renewable and sustainable resource “wood” pursues the goal of managing ecological and economic challenges.

Johann Hochegger | Managing Director

Research and development have always been a part of our concept. We aim to use innovative, efficient and both economically and ecologically sustainable solutions in solid timber construction.

Johannes Habenbacher | Chief Technical Officer

We are there
for you.