Abstract: A spring-biased floor for gymnastic and cheerleading competitions is formed from a plurality of interlocked panels having overlapping edges. Springs are mounted on the bottom of the panels, including beneath the overlapped edges. The primary panels include L-shaped ledges extending along two adjacent sides, while finishing panels include a ledge along only one side. The springs mount onto heads extending downwardly from the panels and having a 360° lip over which the springs are snap fit.