Old Look Preaged Weathered Siberian Larch Tongue and Groove Secret Fix Sample

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Our 19 x 145mm Tongue and Groove hidden fix. The weathered effect finish means there will be no vast differences to natural weathering. Can be used to clad horizontally or vertically.

The samples sent out to you in the post will only be one piece, images are of 2 pieces to see the fitting of the product.

As the Old Look is a treatment applied to the timber, when it is freshly treated, the colour will be a lighter grey. Once the timber has been exposed to the elements it will gradually change to the darker colour displayed. You should also allow for colour variation as each board is different and may not take the treatment in the same manner.


  • 19×145 Weathered Effect Secret Fix Profile Viking Siberian Larch SertiWOOD® Heartwood
  • Silver grey colour
  • Aged Old Look
  • Can be used to clad horizontal or vertical
  • Non toxic treatment
  • Secret Fix / Hidden nails
  • Quick and easy to install
  • Minimal maintenance required
  • Slow grown and selected for durable heartwood


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