Massivtre AS
Distribution Partner

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Who we

Massivtre as is a company established in 2016. Our main office is in the southern part of Norway, but we also have an office in Oslo. We have a strong commitment to the projects we deliver and have accumulated good experience over the years! For us, all projects are equally important and we want to provide the best service for all customers!


We are fortunate to have dedicated skilled staff with great interest in wood constructions. Bim technician, project managers, technical drafters and construction designers.

Tor Øystein Osa Michalsen, Founder and CEO | T. 0047 40403057

Dagfinn Urfjell, Project manager | T. 0047 90022449

Carsten Hovind, Project manager (Oslo office) | T. 0047 99699196

Knut Terje Kollen, Technical drafter | T. 0047 40458920

Kai Hågensen Jensen, Construction designer | T. 0047 98442195

Christian Øien Danielsen, Calculator/Coordinator | T. 0047 45973106

Andreas Wiig Abrahamsen, Technical drafter | T. 0047 468990113

Alfred Gundersen, Master of Science | T. 0047 95076614


For many years we have gained expertise and experience in using CLT in large and small projects. We can also contribute in projects with tips to guidance for related products.

  • Construction concepts for the use of CLT projects
  • Calculations and sizing
  • Optimization of solutions for the use of CLT
  • Delivery and project follow-up
  • Assembly of projects


Nygaten 3
4876 Grimstad

+47 404 03 057

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Office Buildings


A zero-emission office building classified as BREEAM Outstanding

Single Family Houses

Lita Kikut

Public Buildings

Climbing Tower

Der Kletterturm besteht aus sechs gleichartige, 12 Meter hohen und 200 mm dicken, fünfschichtigen Wandelementen, die sternförmig angeordnet sind

Single Family Houses


The worlds northernmost Energy-Plus-House built in CLT

Multi-storey Residential Buildings


An urban exclusive residential district in the town centre

We are there for you.
+43 3588 8835

KLH Massivholz GmbH
Gewerbestrasse 4
A-8842 Teufenbach-Katsch
KLH Massivholz Wiesenau GmbH
Wiesenau 2
9462 Bad St. Leonhard

We are there
for you.