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    Welcome to UK Sleepers. Orders can be placed and paid for online 7 days per week.

    Redwood Thermowood Shiplap Internal Cladding

    Thermally treated timber has undergone first a kiln drying process and afterwards a thermal treatment for up to 48 hours and 260 degrees celsius. This process modifies the cellular structure of the material and will prevent degradation via insect attack, rot, weathering etc for many decades. The process changes the colour of the timber to various shades of brown depending on material, our Scandinavian redwood fifths end up a nice light chocolate brown. If the colour is protected by a clear coating for external use then the colour will remain the same but if left alone it will change to a lovely silver grey over time. Internally the colour will not fade for many years and will require no treatment to retain it's original brown hue. Our redwood Thermowood will have sound knots, among other natural characteristics and is machined on site to our usual high standards to several of our standard profiles.

    This is a highly durable material that is effectively a drop in replacement for traditionally longer lasting softwoods such as Siberian larch and Canadian Western red cedar with far lower environmental impact.

    Ready to fix and available in two options - first grade and character:

    • First grade is sorted to include only the clearest (most knot free) boards with the straightest grain possible. A perfect choice for all modern and contemporary applications.
    • Character will have a mixture of all top four grades, 1 through to 4 - some clear of knots and some straight grain, others with knots and some sloping grain. A perfect choice for all traditional/rustic applications, it gives a less uniformed look, without compromising its excellent durability properties.

    We offer the following section size with an 10mm recess:

    • 142mm x 22mm - The overall width is 142mm, with the visible face measuring 132mm

    This profile is priced per square metre and comes in random lengths between 1200mm and 3600mm unless otherwise specified for an additional charge:

    • Set lengths up to 3500mm - £4.00 extra per square metre exc VAT
    • Set lengths above 3500mm - £8.00 extra per square metre exc VAT

    Please contact our Sales Team on 01536 267 107 should you have any issues.

    Please ensure when ordering that you make an allowance for wastage. We recommend adding an additional 10% over and above your initial requirements.

    Still unsure? We offer up to two samples of our cladding boards for a £5 inc VAT postage charge. Should you wish to then purchase cladding boards that are the same product as your samples, we will reimburse you the £5 postage charge upon ordering!*

    *Terms and Conditions apply

    Product Options

    Size: 142mm x 22mm | Min Qnty: 1 | Treatment: No End Matching
    £32.49 ex VAT
    Grade: First Grade | Size: 142mm x 22mm | Min Qnty: 1 | Treatment: No End Matching
    £42.49 ex VAT
    Size: 142mm x 22mm | Min Qnty: 1 | Treatment: End Matching
    £44.99 ex VAT
    Grade: First Grade | Size: 142mm x 22mm | Min Qnty: 1 | Treatment: End Matching
    £54.99 ex VAT
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