A typical outdoor Stepstone pavers kitchen frame is made out of pressure treated 2X4's and " particle board. You can use concrete block, but the wood frame is a lot easier to work with, thinking about beginners. Often times the frame is built as three separate box frames, and also screwed together to complete the kitchen island. You can scale the frame match the length and width of almost any patio.
There will also different varieties of coping styles but the most common is the rolled advantage. Public pools usually have this associated with pool edging since swimmers can grip on the rounded edges these people needed so that it will. This rolled edge coping is often made of concrete but tends to be changed to granite for a further type stylish interest. Another type of coping may be the bull nose coping. Furthermore, it has a round edge but flatter compared to your rolled casing.