The Spark Series Square deck is a medium-sized deck platform which can be used to create the upper levels of any custom Spark Series play system. The square shape is easy to manage, and to connect to other deck platforms with different shapes. It is made from durable steel with a PVC coating that repels water which could cause rust and corrosion. It also significantly increases traction, which greatly reduces the risk of children slipping as they run around the structure. The deck also has circular perforations in it which prevent water from building up on its surface. It has a rounded section cut away from each of its corners which allows it to be fit between four metal support posts, which support it and allow it to be installed at a range of different heights. Each side is wide enough to allow the attachment of a slide, climber, or panel.