Prep the Area
The quantities needed for the materials vary with your own particular application. Take the dimensions to a local materials supplier, where they will calculate the amount of each product needed. Always wear eye protection and follow proper safety precautions when working with power tools or pneumatic tools.
Map out the design using marking paint and then dig out the patio. Dig holes for the footing for the wall. In this case, the footing needs to be 14" deep. Add rebar for extra support.