Siberian Larch Heartwood Natural, Rhombus, Hidden Fixings Profile UTK (pack)



  • 28 x 70mm Planed Rhombus Effect Secret Fix UTK Rainscreen Siberian Larch SertiWOOD® Heartwood
  • Rhombus Rainscreen Larch battens • Tongue and Groove Hidden fix profile •
  • Closed construction •
  • Shadow Gap • Slim line profile •
  • Quick and easy to install •
  • Slow grown and selected for durable heartwood •
  • Can be stained, painted or treated with SertiWOOD® for a weathered aesthetic •
  • Suitable for both open and closed designs •
  • Available in long lengths •

Sourced from Sustainable Forests and FSC Certified • Meets UK and European Cladding Regulations CE Marked to EN14915, BS1186, BS8605 • Timber Quality is A/B Grade. Our 28 x 70mm Planed Rhombus UTK Secret Fix tongue and groove Rainscreen Larch closed construction Battens are a versatile profile for use on many building projects, such as cladding, closed gap construction still maintaining the full rainscreen effect. Our slow grown Siberian Larch is durable and dense, making it one of the best available in the UK. No extra treatment necessary for above ground decking, fencing and cladding projects. All our Larch is FSC Certified.

For fixing cladding we recommend: Timber Cladding Stainless Steel A2 Countersunk Screws 4.0×45 or Annular Ring Stainless Steel Nails 2.65x 50mm

Additional information

Weight 30 kg
Unique Profile Reference and Profile Size

Pack length (mtr)

Number of Pieces in a Pack (each)

Linear metres in a Pack

Square metres in a Pack (m2)

Approximate number of Fixings required per Pack

Environmental Certification


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