James Hardie Oblique Cladding 4200 x 200 x 14 Available in 200mm and 300mm widths, these 14mm thick shiplap boards offer multiple installation options and allow for simple alternation or unique combinations. The horizontal Hardie Castellated Battens simplify vertical installation, allowing ventilation and drainage through the cavity. The 2750mm boards suit common wall heights to help to reduce waste, while the 4200mm lengths give tall walls a continuous look, reducing the need for horizontal joints. The boards are pre-primed and ready to paint. Made with Hardie premiumǻfibre cement it will stay looking good. Its resistant to damage from termites, rot and moisture, and engineered to stand up to coastal and other harsh conditions.