What type of casters should I use on an office chair with concrete or hard floors?

Soft polyurethane (PU) or polyolefin casters are the right choice for concrete, hardwood, tile, and luxury vinyl floors — they roll smoothly without marring or scratching the surface. Hard nylon casters (the standard that most chairs ship with) are designed for carpet and will scratch hard floors over time. Rollerblade-style 60mm PU casters upgrade both rolling performance and floor protection. Replacement is simple — most casters use a standard 7/16" stem and pop out with a flat screwdriver. FindOfficeFurniture.com has office chairs and caster accessories — call 888-719-4960.