Thermo Spruce decking

For our Thermo Spruce decking, high-quality Scandinavian Spruce is thermally modified in a natural process using only heat and steam. After the thermal treatment, the dimensional stability and durability of the wood is improved. In addition, the wood develops a pleasant brownish colour.


  • Durability class 2 (durable)
  • Thanks to thermal treatment, resistant to mould and fungal attack
  • Hairline cracks, shelling and splinters possible in the surface
  • Differences in colour emphasize the natural character.

Find a dealer in your area

Our surfaces for Thermo Spruce

For our Thermo Spruce timber decking, you can choose from various surfaces.

Technical data & installation

Suitable accessories for installing Osmo Thermo Wood Pine decking

Here you can find our accessories developed specifically for Thermowood.

Thermo accessories

A selection of Osmo wood product catalogues

All videos, technical information, catalogues and brochures can be found in our media library... 

Media Library