Heavy-duty planed & treated softwood cladding. Perfect and suited for exterior buildings including sheds, summerhouses, garages, play sheds or even build your own garden bar and more! Pressure treated to ensure long life and designed to overlap with each other for extra strength and durability. With: 121mm Thickness: 21mm Length: 1.8m (6ft), 2.4m (8ft), 3.0m (10ft), 3.6m (12ft)