Wooden building elements

CO2 removal from sustainably grown wood is considered long term when it’s used in the construction of buildings.

Wooden building element supplier: Hirsitaloteollisuus Ry



Over the centuries, log construction has formed part of the Finnish scenery and mental landscape. Log house production is energy self-sufficient, and even produces additional energy than it uses, as it generates more energy waste by-product than the energy it takes to manufacture the product. Hirsitaloteollisuus is the Finnish Log House Industry Association and its member companies build 80% of the log houses in Finland.


Carbon removal type / Wooden Building elements

Project status / In operation

Location / Finland


Cafe Birgitta / © Honkarakenne Oyj

What's the climate impact?

1 ton of output product removes 0,4869 tn CO2 eq. from the atmosphere into long-term storage. The production has been verified by DNV GL, according to Puro CO2 Removal marketplace requirements.



Economic stimulation effect

The extra income from Puro is used for member companies’ development initiatives, such as improving the recyclability of log houses. It will also be used to develop tighter collaboration with universities, for example investing more funds in student theses.


How it works

Growing trees captures CO2 - a ton of wood binds 1,8 tons of CO2 while growing.

Trees are sustainably harvested according to Forest Stewardship Council principles, and wooden building elements are customized. The average (145 m2) Finnish log house stores over 30 000 kg of CO2 and locks it into long-term storage that stays out of circulation for decades.

After the production has been verified for carbon negativity, the extra carbon stored in the wooden building elements is issued CO2 Removal Certificates, CORCs.

Annual construction

  • 1300 personal homes, Finland
  • 1500 vacation homes, Finland
  • 60 public schools and daycares, Finland


Pudasjärven hirsikoulu (Kontiotuote Oy)

Pudasjärven hirsikoulu / © Kontiotuote Oy

If you want to neutralize your emissions using this specific removal method, just place your purchase bid in Puro.earth auction or negotiate a pre-purchase agreement. In a Pre-Purchase Agreement buyers secure availability and price by agreeing with one or more suppliers to buy a predetermined amount at a set price in the next auction. To arrange a Pre-Purchase Agreement please contact us

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