A safety net system is configured for mounting to a rack having a pair of spaced apart upstanding posts, in which the upstanding posts have open tops and holes formed in side walls thereof. The safety net system includes a pair of spaced apart uprights, upper and lower mounts operably connecting each upright to a respective rack post and an upper element extending between and mounted to the uprights at about an upper portion of the uprights. A net extends between and is mounted to the uprights and mounted to the upper element. The net is removably mounted to the uprights and to the upper elements and the uprights are variably mountable to the rack posts to vary a height of the net above the posts.