09.08.2023. The housing sector is undergoing profound changes: urban concentration, high land prices, climate change... energy renovation is also one of the issues we have to face. The challenge for project managers: to imagine how to expand existing housing without upsetting the codes. Our answer: engineered wood that is certified sustainable (Forest Stewardship Council, FSC® C022952) and technically reliable (CTB-LCA, KOMO).

 Interholco engineered hardwood2


Want to create complementary living spaces that promote daily well-being and the beauty of the elements used?
To experience a real immersion in nature, it is important to choose bio-sourced and eco-certified wood!
Be it doors or windows, the glued laminated timber that IHC produces entirely in the Republic of Congo can be adapted to all requirements thanks to its standardised lengths of 5.90 m.

Interholco engineered hardwood3

Our solid glued laminated timber in African species benefits from increased technical performance. A perfect marriage between resistance, stability, durability of your product and beauty of the material.
The result: your (new) space opens up with doors and windows that have good thermal performance and airtightness. A feeling of freedom is created with a unique comfort and architectural quality, even when your doors or windows are closed. 


Photos © Interholco 

About Interholco

Founded in 1962, INTERHOLCO (IHC) delivers African, European and North American hardwood products (lumber, logs, decking, laminated scantlings) to B2B customers in more than 40 countries worldwide. Recognized as a sustainability leader, IHC responsibly manages 1.16 million hectares of natural rainforest in the Republic of Congo, turning harvested wood into high-value timber products that serve customer needs, as well as improving our climate and increasing social justice. IHC is the first forestry company in the Congo Basin to have acquired FSC Ecosystem Services certification, for biodiversity protection on top of FSC Forest Management certification (Forest Stewardship Council, FSC® C022952). Follow us on LinkedIn


Communication contact Interholco

Tullia Baldassarri Höger von Högersthal
INTERHOLCO AG, Neuhofstr. 25, 6340 Baar, Switzerland
Tel.: +41 (0)41 767 03 82 
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


Sustainability report 2022

INTERHOLCO Sustainability Report 2022 cover

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