Wall coping is a finish material installed at the top of a masonry wall structure. Depending on the desired function and appearance, wall coping can be made from any number of materials, including stone, concrete, or metal. Wall coping components are often known as wall caps in many parts of the world. Wall caps serve a number of functions when installed on a wall. They help to keep water out of the wall, which minimizes the risk of damage from freezing and thawing over time.
The coping also protects the top of the wall from physical impacts or damage. In many applications, wall coping is chosen primarily for its aesthetic appeal. Different types of coping can give the wall a smooth, polished appearance while helping to conceal mortar or rough stone surfaces from view.