Place a rug on your floor under the chairs. The thick, heavy fabric or the rug can prevent furniture from scraping and damaging your floor.
Place furniture glides on the feet of your chairs. According to the National Wood Flooring Association, placing soft plastic or fabric-faced glides under the legs of your furniture can prevent scuffing and scratching of your floor. Measure the size of your chair's feet to ensure you purchase the correct sized furniture glides. You can purchase furniture glides at home improvement stores.
Attach wheels to the feet of your chairs if you're not satisfied with the furniture glides. Use non-marking rubber or ball wheels, as these specific types of wheels are less likely to leave marks on your floor. Follow all directions on the label for maximum success. You can purchase non-marking rubber or ball wheels at hardware or home improvement stores.