Smooth planed boards and planks made from original Finnish Thermowood represent a premium solution for both exterior and interior applications. Thanks to thermal modification at 212 °C Thermowood D, the wood achieves exceptional dimensional durability, stability, high resistance to moisture, decay, and wood-destroying organisms, and a significantly extended service life, all without the use of chemical impregnation. The material retains an attractive natural appearance, is pleasant to the touch, and is well suited for modern architecture with an emphasis on sustainability. It is an ideal choice for facades, pergolas, shelters, cladding, shading systems, and other design and structural elements where quality, aesthetics, and long-term performance are essential.