One athlete stated 3/4"My abilities have increased since tumbling on this floor. I feel more bounce and I am more confident in my skills.This is a multi-ply single layer floor that provides a strong, yet soft feel for the athletes.Its enhanced connection design with adjustable spring pattern provides an improved rebound to help gain confidence in tumbling passes.The adjustable spring pattern allows each facility to structure the flex within the floor based on the needs of their athletes.It utilizes 41/28 panels with H-channels and fasteners for easy assembly.When creating a complete floor system we recommend using a 23/4" or higher EVA foam.This floor comes with our standard warranty, but will not cover wood breakage.