About us

KLH UK is a market leader and pioneer for Cross-Laminated Timber design and construction. A wholly owned subsidiary of the KLH Massivholz which has manufactured and distributed CLT worldwide for over 20 years.

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2nd KLH
CLT FACTORY

Two decades after pioneering the world's first cross-laminated timber facility in Katsch in 1999, KLH celebrated another milestone with the inauguration of its second production site in Bad St. Leonhard, Carinthia, Austria. Boasting an impressive annual output capacity of approximately 125,000 m3 of KLH® - CLT, this expansion represents a significant leap forward in KLH's commitment to innovation and sustainability in timber construction.

The incorporation of state-of-the-art production technology not only solidifies KLH's competitive edge but also elevates the overall efficiency of CLT manufacturing. Moreover, this expansion has catalysed a positive effect in the local economy, creating over 100 employment opportunities in the economically challenged Wolfsberg region. Through strategic investments and a steadfast commitment to sustainability, KLH continues to shape the landscape of modern timber construction.

References

Projects from different
categories and countries

Modular construction

Flexible living units

Modular solutions offer flexibility

Office Buildings

Fifty West

Pioneering architecture in Central Florida

Single Family Houses

House with forest views

New construction of an old farmhouse

Educational Buildings

Glenn Doman School

The symbiosis of sustainable architecture and progressive pedagogy

Hotels

Hótel Jökulsárlón

A hotel near the majestic Vatnajökull glacier

Healthcare Buildings

Psychiatry Clinic Ottakring

sustainable architecture with modern healthcare

Public Buildings

Aldi

A fantastic example of modern sustainable retail construction.

Office Buildings

Free City

An office building – efficient and innovative right from the start

Office Buildings

Facephi

from cinemas to state-of-the-art offices

Public Buildings

Tourist office Orelle

tourist office with holiday flat

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, FLOORS AND ROOFS

COMBINABLE WITH ALL MATERIALS

EPD
in acc. with
ISO 14025
& EN 15804

Environmental
Product Declaration

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Events & Exhibitions

17. Europäischer Kongress (EBH)

16.10 bis 17.10.2024

17th European Conference
Urban Timber Construction
Kongresszentrum Gürzenich | Booth 26
Cologne, Germany

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Vi Bygger Vestland

23.10 bis 24.10.2024

Trade fair for builders, contractors and planners
Grieghallen Bergen | Booth 29
Norway

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Building Green

30.10 bis 31.10.2024

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

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Saudi Build 2024

04.11 bis 07.11.2024

Riyadh International Convention & Exhibition Center
Hall 4 | Booth 4-427
Riyadh, Saudi Arabia

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28th International Timber Construction Forum

04.12 bis 06.12.2024

From practice – for practice
Congress Innsbruck
Austria

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BAU

13.01 bis 17.01.2025

World’s leading trade fair for architecture, materials, systems
Trade Fair Center Munich
Hall B5 | Booth 129

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4DESIGN DAYS

23.01 bis 24.01.2025

Architecture | Design | Interior design
International Conference Centre Katowice (MCK)
Poland

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WCTE

22.06 bis 26.06.2025

World Conference on Timber Engineering
Brisbane Convention & Exhibition Centre | Australia

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News & Events

News

Green Energy

KLH is committed to sustainability: New photovoltaic system with 4,200 PV modules provides environmentally friendly electricity for KLH® production.

Publikationen

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…

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

Technical Approvals, Certificates and Eco-labels

Our 
services.

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We are there for you.

+44 (0) 20 3031 8070
General Business: office@klhuk.com
Project Enquiries: enquiry@klhuk.com

KLH UK Limited
23 Jacob Street
London SE1 2BG

We really wanted to say thank you to everyone who has been involved in getting us this far. We have been really excited to see the structure go up and the on-site team have done an amazing job. The CLT looks great.

Mary & Klaus Morris | Blackwood House

I would like to record that I have been very impressed with your work on site and the efficiency of your construction team. The finished product is exactly as expected and was completed ahead of programme. Thank you for the efforts of your team.

David Spooner | Construction Project Manager | Hastings Pier Charity

Mayfield School are delighted with the new buildings. Innovative use of space and light in the atrium areas and other specialist classrooms will enhance the possibilities available to our staff and students.
The Sixth Form is designed not only to give a real feature (Heller-Up staircase), but is also a practical and useable large space which can be used by the whole school for various activities. The new building and external areas have created a real ‘WOW’ factor for our community as a whole.

Allison Greenwood | Deputy Headteacher | Mayfield School

The Mayfield School Project was delivered on time and within budget. It is to an excellent quality of workmanship which surpassed the expectations of the client team and the end user. The building’s design is rational, durable and above all maintainable which will ensure that Mayfield School will continue to provide teaching excellence within the London Borough of Redbridge.

Steve McConaghy | Senior Construction Project Manager| London Borough of Redbridge

I am the HT of a school in the UK which has been constructed using CLT. I am tremendously impressed with the very calm and purposeful learning environment that has been created. The students are so proud of the building and the exposed CLT is a major factor in this as it gives a high-end quality finish not common in schools in the UK. The CLT construction method enabled the building process to be rapid which was a major factor in us moving in on time.

Keir Smith | Head Teacher | William Perkin C of E School

We are completely delighted with the CLT!!! It’s been very exciting seeing our project in the factory and then going-up on site so quickly.
We love the exposed CLT walls and the character it gives the interiors – we can’t wait to move in. I think that the KLH team has been excellent throughout, from first contact, through the quotation stage to shop-drawings and the on-site erection crew – everyone has been very professional and helpful at all times. It has been a pleasure working with you all – I would be very happy to use KLH again in the future.

Ruth Butler | Ruth Butler Architects | Convent Lane

There is a great ambience in occupying a CLT school and it generates interest and a positive atmosphere with students, staff and visitors. Would definitely recommend it to another school.

Head Teacher | City Academy, Norwich

We are not driven by the question of whether to use stone or glass, box or blob, metal or wood, but by the never-ending search for an answer to the question of how we humans will live in the future and how to implement that creatively.

Prof. Xaver Egger, Hendrik Rieger | SEHW ARCHITECTURE

At G22 Projects GmbH, the architectural and general planning office, we are active on a national and international level, specialising in tourism, hotel and spa projects.
We combine design, form, functionality and economic efficiency. With each project we express our creativity in new ways, whilst continuing to respect the rules of the game.

G22 projects gmbh

We consider the environment and architecture to be one unit and believe in offering ecologically sustainable solutions throughout our entire ser vice spectrum. We work across the disciplines, together with experts in many areas, focussing on questions concerning legal issues, structural analysis, energy efficiency, ecology and, of course, economic efficiency.
In this respect, it is vital that we work closely and constructively with all our project partners. This is the only way to find the best possible solutions and to be able to address and implement our customers’ individual wishes whilst staying true to advanced and sustainable architecture.

MIND Architects Collective

This project was my first encounter with CLT back in 2015, and what an experience! Love at first sight. Working with the CLT -possibilities is really like a dream-come-true. Lovely lively material which enables clean-cut, honest design, with no worries of on-site misunderstandings of construction or design. The builders work in a healthy work-environment, with no pollutants from the building material or stressful building site-noise, as opposed to working with steel and concrete for instance. They all express their utmost contentment, and builders from other building sites has continuously applied to be transferred to our site. That says a lot for CLT in my opinion.

Architect MA Siv. Ark. Gunn Torill Rike Johansen | BG M Arkitekter AS

Successful architecture arises in a dialogue of the par ties involved. Our objective in this respect is to build in a sustainable, formal, functional and ecological way. We therefore develop our buildings based on the prevailing conditions. The location and its history are just as important to us as the purpose of the buildings and the people for whom we build. In order for this complex process, with its many players and conditions, to result in good architecture, it is necessary to have a trusted agent at the centre of proceedings. With nearly 30 years’ experience as architects, we consider ourselves to be exactly that trusted agent.

Dr. Martin Riehl | Architekturbüro Hirner und Riehl

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for you.