Swimming Pool Starting blocks are raised platforms mounted to the edge of the pool deck. These blocks are used by competitive swimmers to launch themselves into the water at the beginning of a race. For this reason, it’s critical that starting blocks meet the stringent guidelines set in place for swimmer safety.Starting block standards vary based on the level of competition. At FENLIN, all of our pool starting block offerings accommodate a wide range of competitive swimming levels. Within each starting block product listing you will find which regulatory agency the starting block is approved for use by, ensuring your selection meets the proper standards for your needs.