This complete WPC decking board set with accessories, making up a total size of 20 square metres, is perfect for patios, balconies, or areas next to a pool or spa. Made of quality wood plastic composite, our decking boards are water resistant and very durable. The decking boards are extra thick at 25 mm, making them super strong. In addition, the decking boards have a different pattern on each side. Delivery includes 60 decking boards, 20 first & last board stainless steel clips, 480 plastic spacer clips, 480 stainless steel screws (4 x 35 mm), 20 screws (4 x 25 mm), 180 plastic tubes for expansion screws, 180 stainless steel expansion screws, and 30 joists. Warning: To allow for expansion and maintenance, please be sure to keep a free space of at least 3 cm between all sides of your deck and any obstructions such as walls, fences, etc. Note 1): The accessories are packed between the boards and joists. Please check the package carefully to find the accessories before assembly.Note 2): The expansion screws are combined with the plastic tubes.