Hardwood floors require caster wheel types that will not damage the floor, either by marring or marking. Choose selections with thermoplastic rubber (TPR), urethane, neoprene or polyurethane for optimum floor protection. This group of wheels is also highly recommended for laminate, vinyl, linoleum and tile floor surfaces. When unsure of whether a caster will be used primarily on carpet or hardwood, it is best to choose a softer wheel which will prevent costly damage to hardwood flooring. Also, our valued customers tell us that these casters work great on floors with epoxy coatings, especially the Softech models.