The five most common pool coping types are:
Bullnose coping: Has a curved, protruding edge.
Cantilever coping: May also be called “square edge” coping.
Flat-mount coping: Has a platform for edge pavers or stones on a vinyl liner pool.
Rough-cut coping: An organic, rough stone edge.
Top-mount coping: The most common rounded edge seen on a concrete pool.