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".

Learn more

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.

Learn more

 

 

 

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

HotelsModular construction

Twente – Family Homes

Sustainable and solid prefabricated houses

Educational BuildingsRefurbishment & Extensions

HLT Retz

The original building from the 1970s underwent an expansion with the addition of a courtyard building. This new structure seamlessly connects to the existing one, thanks…

Hotels

Houten Hotel Almere

Addition to an existing restaurant with over 172 hotel rooms on four floors.

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

HotelsModular construction

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

To the Overview

KLH designer –
Without
registration,
anytime,
anywhere

KLH DESIGNER

ARCHITECTURAL | STRUCTURAL | ECO

Learn more

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

Learn more

Events & Exhibitions

4DESIGN DAYS

25.01 bis 28.01.2024

Architecture | Design | Interior design
ICC Katowice
Booth 21
Poland

Read more

DACH+HOLZ International

05.03 bis 08.03.2024

Green Building: Building Envelope & Timber Construction
Hall 10 | Booth 412
Exhibition Centre Stuttgart, Germany

Read more

Home Fair Ljubljana

06.03 bis 10.03.2024

Slovenia’s largest construction fair
Ljubljana Exhibition and Convention Centre
Slovenia

Read more

International Mass Timber Conference

26.03 bis 28.03.2024

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

Read more

13. Forum International Bois Construction (FBC)

03.04 bis 05.04.2024

Int. Timber Construction Forum (FBC)
Épinal/Nancy
Frankreich

Read more

CONSTRUMAT

21.05 bis 23.05.2024

International Building Exhibition
Fira Barcelona – Gran Via Venue
Hall P2 | Booth E25
Barcelona, Spain

Read more

13. Forum Wood Building Nordic (WBN)

26.09 bis 27.09.2024

Wooden Architecture & Constructions in the Future
Oslo, Norway

Read more

17. Europäischer Kongress (EBH)

16.10 bis 17.10.2024

17th European Conference
Urban Timber Construction
Kongresszentrum Gürzenich
Cologne, Germany

Read more

Building Green

30.10 bis 31.10.2024

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

Read more

28th International Timber Construction Forum

04.12 bis 06.12.2024

From practice – for practice
Congress Innsbruck
Austria

Read more

News & Events

News

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.

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

Technical Approvals, Certificates and Eco-labels

Find a partner
in your area.

To the interactive map

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.