One of the benefits of using rubber flooring for your home gym is to reduce the vibration from your exercise equipment when in use. The thicker the rubber, the more vibration it will absorb. A typical home gym floor will use the 5/16-inch thick rubber tiles. Professional weight lifters may want to consider 3/4-inch thick rubber tiles or mats. https://modutile.com/product/interlocking-rubber-floor-tiles-23x23-8mm/