Size 60 * 120 (cm) Thickness 0-5 mm Series Wooden Color Wood plank is a unique fibre cement composite of natural fibres bonded tightly in a high-grade silicate structure. This autoclaved wood-grain siding acquires impressive toughness, yet remains flexible and dimensionally stable. It is a cellulose cement plank that contains absolutely no asbestos fibre, no fibre glass fibres or formaldehyde.