Width (MM) - 121mm (Finished Size) Thickness (MM) - 14.5mm (Finished Size) Length (M) - 1.2m (4ft) 1.8m (6ft), 2.4m (8ft), 3.0m (10ft) and 3.6m (12ft) Face Coverage - 115mm Overlap - 7mm Timber Type - Joinery Grade 5ths Scandinavian Redwood Surface Finish - Planed Timber Treatment - Green Pressure Lonza Treatment. Click here to see more information on the treatment process. Warranty - 15 Year Treat Right Warranty Planed shiplap tongue and groove profiled softwood cladding suited for exterior work such as horizontal boarding of sheds, summer houses, garages, play sheds or parts of house walls. Hugely popular with us at Ruby and we ship 1000’s of these a year. Designed to interlock perfectly with each other. Our joinery grade Scandinavian redwood shiplap T&G comes green pressure treated, meaning they are perfect for all exterior uses. Our cladding also comes with a 15-year treat-right warranty!