Thermowood LunaThermo-D Redwood Shadow Gap Timber Cladding, 25 x 150mm (AL10 - 125mm face) PEFC

ThermoWood® is a physically engineered timber that is produced by specialist heat treating Scandinavian Redwood / Whitewood. It is this alteration in structure that results in a more stable, anti-fungal timber ideal for use in exterior applications.

Our Thermowood is produced by the Finnish company Oy Lunawood Ltd, who are one of the world’s leading producers of Thermowood. They were forerunners in the development of thermally modified timber and founder members of the International ThermoWood Association.

  • Shadow gap profile boards, 125mm horizontal/vertical cover
  • Heat treated, with no chemicals used
  • Improved dimensional stability
  • Accepts stains and finishes very well
  • Good and consistent face finish

Please Note: Timber lengths are subject to availability. Once your order has been placed, your local branch will be in touch with information on the lengths available for dispatch or collection.

If you need any further help contact us via Live Chat or email

£7.32 per Metre
In stock
Product code
Stock availability ()
  • COVENTRY: 553.52
  • CROYDON: 140.69
  • Timberworld LEEDS: 22.29
  • Timberworld READING: 1.57
  • Timberworld SHEFFIELD: 15.31

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More Information
More Information
Width (mm)150 mm
Thickness (mm)25 mm
CertificationPEFC® Certified
Board profileTongue & Groove
Delivery Information

Delivery for branch stocked items is currently 2-5 working days and items will be transferred nationally throughout our branches. Click & Collect is only available from eligible branches that have all items on your order in stock. A minimum order value of £120 (incl. VAT) applies to products Delivered from Stock. FREE delivery is available on orders over £600 (incl. VAT)*. No minimum order value is required for Click and Collect orders. Please note, deliveries from our branch will be delivered to the nearest kerbside at the address specified.

You will be contacted by your local branch to confirm delivery/collection dates.

Items delivered directly from a supplier are subject to specific lead times detailed on the product image. Please be aware that delivery rates from different suppliers may vary, for full details, please visit our delivery details page.

Please note: If you're ordering multiple items, these may arrive on separate deliveries. Lead times may vary for items delivered directly from one of our trusted suppliers. Whilst assistance in offloading materials is appreciated this is conducted at the customer's own risk. For more information about deliveries and charges from Timberworld, please visit our delivery details page
*Excludes products delivered Direct from Supplier which may be subject to supplier-specific delivery charges.
Metric/Imperial Conversions


1 metre (1m) is approximately 3ft 3in (39.37in). 1 inch when converted to metric is 25.4mm.

However, when purchasing timber, you will find that there is usually a slight difference between the actual conversion measurement and the measurement used, for example, items measuring 1 inch may be sold as 25mm. Because the industry conversion is fractionally different than the actual imperial conversion, you should always measure in metric (mm, cm, m) to avoid any measurement mistakes.


Imperial (inches) Actual (mm) Conversion (mm)
1 25.4 25
2 50.8 50
3 76.2 75
4 101.6 100
5 127 125
6 152.4 150
7 177.8 175
8 203.2 200
9 228.6 225
10 254.0 250
11 279.4 275
12 304.8 300
24 (2ft) 609.6 600
36 (3ft) 914.4 900
48 (4ft) 1219.2 1200
60 (5ft) 1524.0 1500
72 (6ft) 1828.8 1800
84 (7ft) 2133.6 2100
96 (8ft) 2438.4 2400