Additional Info: Length: 872mm Width: 250mm Thickness: 48mm Material: Pine The 3 Tread Decking String is made using treated Pine and allows you to create steps to various levels of decking with great ease. 5 Tread Decking Strings also available. Features: Treated Pine This is a treated product and is safe to use externally. Regular maintenance is recommended to keep the quality over time Pre treated and ready to use. However, you can finish off Pine in a variety of ways to suit your style