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Dartank

Sauna panelling

Our dedicated sauna panelling range covers the four species suited to high temperatures and fluctuating humidity: alder (resin-free), thermo-treated abachi, thermo-treated Scandinavian pine and Scandinavian spruce.

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Sauna panelling

Sauna panelling — alder, thermo abachi, thermo pine, Scandinavian spruce

Our range of sauna-specific panelling covers the four species compatible with high-temperature, variable-humidity environments: alder (resin-free), thermo abachi, thermally modified Scandinavian pine and Scandinavian spruce.

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Profiles and species available

  • Diamond-profile alder 1.5 × 9 cm grade A and 1.5 × 12 cm UTS — traditional Finnish species.
  • SoftLine alder 1.5 × 9 cm grade A — softened profile with no sharp edge.
  • Thermo abachi (Ayous) 1.9 × 14 cm UTS+ Natural and 2.1 × 14.3 cm 3-diamond — lightweight African timber.
  • Thermally modified sosna pine 1.9 × 14 cm grade AB bevelled — soft finish.
  • Thermally modified pine UTS 1.9 or 2.6 × 6.8 to 11.7 cm — a range of sections.
  • Bevelled Scandinavian spruce 1.2 × 9.6 and 1.25 × 9.6 cm — economical AB and C grades.

Which species for which part of the cabin?

  • Alder — bench cladding and skin-contact areas (resin-free, soft).
  • Thermo pine — full wall cladding, premium diamond profile.
  • Thermo abachi — benches (very low thermal conductivity) or light-toned contrast.
  • Scandinavian spruce — economical wall cladding (grades AB or C).

Help & advice

Frequently asked questions

Everything you need to know before ordering. Another question? Contact us.

Both are possible. Vertical = the more traditional option, and it helps condensation run downwards. Horizontal = attractive, but calls for particular care with condensation.
UTS / UTS+ = tongue-and-groove profiles for continuous cladding (thermo pine, abachi). SoftLine = softened edge with no sharp arris (alder, spruce). Bevelled = V-groove chamfer giving a subtle relief between boards.
Tongue-and-groove profiles interlock — no visible gap once fitted. Allow a 5 mm expansion gap around the perimeter and at the corners.
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