19×140 Thermo Sosna UTS+ class AB
45,03 € HT54,04 € TTC
Heat-treated timber
Thermally modified timber (also called retified wood) is obtained by heat modification at 200 °C under steam, without any chemicals. Our offer mainly covers Scandinavian pine, oak, abachi (Ayous) and brushed thermo-treated Scandinavian spruce.
150
products
Subcategories
24×68 Scandinavian spruce ROMB class C
14,58 € HT17,49 € TTC
36×120 RHOMBUS pressure impregnated pine x2 BROWN class AB
35,08 € HT42,10 € TTC
22×146 Scandinavian Spruce ROMB x2 class AB
21,78 € HT26,14 € TTC
19×140 Thermo Frake class UTS+ NATUR
98,51 € HT118,21 € TTC
19×140 Thermo Sosna FAZA class AB
45,03 € HT54,04 € TTC
15×90 Alder UTS class A
57,21 € HT68,65 € TTC
Brushed Thermo Pin board 19×140 Faza+ SPECIAL BLACK class AB
63,42 € HT76,10 € TTC
32×142 Thermo Pin ROMB x3V class C
22,55 € HT27,06 € TTC
18×138 Pine/Spruce PHASE class C
10,93 € HT13,12 € TTC
19×121 Scandinavian Spruce FAZA class C
11,54 € HT13,85 € TTC
19×146 Scandinavian Spruce FAZA class C
11,54 € HT13,85 € TTC
34×146 Pine/Spruce Log beam, ceiling-floor, facade PHASE C+C class C
15,63 € HT18,76 € TTC
Planed Scandinavian spruce board class AB, 1,85 × 194 cm
5,17 € HT6,20 € TTC
Thermo-treated oak slat 2,6 x 9,5 cm S4S natural
8,98 € HT10,78 € TTC
Planed board 1,8 × 7 cm in Scandinavian pine/spruce AB
1,58 € HT1,90 € TTC
Siberian larch board 2 × 12 cm, grade AB, 3 m or 4 m
6,25 € HT7,50 € TTC
of which 0,05 € eco-contribution excl. VAT (0,06 € incl. VAT)
Planed Scandinavian spruce board 2.4 cm × 14.6 cm grade AB
3,93 € HT4,72 € TTC
Scandinavian spruce planed board 19×45 S4S class AB
0,93 € HT1,11 € TTC
of which 0,01 € eco-contribution excl. VAT (0,01 € incl. VAT)
Scandinavian spruce planed board 19×96 S4S class AB
1,83 € HT2,20 € TTC
of which 0,01 € eco-contribution excl. VAT (0,01 € incl. VAT)
Planed board Thermo Sosna 26×40 S4S class AB
2,31 € HT2,77 € TTC
of which 0,01 € eco-contribution excl. VAT (0,01 € incl. VAT)
Planed board Thermo Sosna 26×68 S4S class AB
3,83 € HT4,60 € TTC
of which 0,01 € eco-contribution excl. VAT (0,01 € incl. VAT)
Siberian spruce planed board 28×146 S4S class AB
23,10 € HT27,72 € TTC
of which 0,21 € eco-contribution excl. VAT (0,25 € incl. VAT)
Planed board class NATUR Thermo Abachi (Ayous) 18×90
6,16 € HT7,39 € TTC
of which 0,01 € eco-contribution excl. VAT (0,01 € incl. VAT)
Thermo-S or Thermo-D: which one should you choose?
Thermo-S (Stability) — geared to dimensional stability, use class 2-3, dry interiors, sheltered façades, furniture under a canopy.
Thermo-D (Durability) — geared to biological durability, modified use class 3, exposed decking, exterior cladding, outdoor ceilings.
Most of our range is Thermo-D Scandinavian pine — the right balance of durability and looks.
Four thermally modified species
- Scandinavian pine — our main species: decking boards, cladding, panelling, square sections.
- Thermally modified oak — 2.6 × 9.5 cm S4S slats, natural grade, dense premium finish.
- Thermally modified abachi (Ayous) — lightweight African timber, boards and slats 1.8-1.9 cm.
- Brushed thermally modified Scandinavian spruce — wide decking board 2.6 × 18.5 cm, natural grade.
Why choose thermally modified wood over pressure-treated timber?
No biocide — no chemicals leaching out, safe for children, pets and neighbours. Compostable.
Regulatory compliance on markets with strict biocide rules — Belgium, Luxembourg, green building.
Tropical-grade stability without CITES — an alternative to imported tropical hardwoods (ipe, cumaru, Bangkirai, etc.).
Help & advice
Frequently asked questions
Everything you need to know before ordering. Another question? Contact us.
Timber that has undergone a thermal modification at 200 °C under steam, with no chemicals. The process alters the physico-chemical composition of the wood: resistant to fungi and insects, and dimensionally stable.
Scandinavian pine (the majority), oak, abachi (Ayous) and Scandinavian spruce. All in Thermo-D, modified use class 3, for outdoor use.
Yes — no biocides, no chemicals, and compostable at the end of its life. One of the most environmentally responsible alternatives to pressure-treated pine and imported tropical hardwoods.
15 to 25 years in modified use class 3, depending on exposure, maintenance and installation. Comparable to a quality tropical hardwood, without the CITES issues.
Thermo-D is modified use class 3 — not class 4 (prolonged direct ground contact). Always raise it on pedestals or shims.