Enrich walls with chair rail moulding. Chair rail gives walls a sense of depth and proportion. This chair rail includes a basic concave profile. It can be used alone or with other moulding products to achieve unique results that bring out the best in your decor. The moulding measures 8 feet in length, and it is crafted in durable urethane. Traditionally, chair rail moulding was used to protect walls from damage caused by chair backs. Today, chair rail is largely used for decorative purposes alone. Modern urethane moulding captures the beauty and detail of traditional chair rail. Urethane moulding is dense and strong, but also light in weight and pre-primed.