Hardie Plank is a no-fuss, 7.5mm thick fibre cement weatherboard with two timber grain textures that are perfect for cost-effective home extensions. They’re able to be used to clad whole homes or as extensions to brick homes. Hardie Plank Smooth is a wide board weatherboard which come in two widths (heights), 230mm and 300mm. For a more traditional look, there are two narrow profile weatherboards: Hardie Plank rusticated is a rough sawn textured narrow board, with a rebate to deepen the overlapping shadow line. 4200x230mm & 4200x300mm