How to construct a cement block gate column and fence?

The column is fairly easy. Deep enough footing, rebar in the footing and set the block over the rebar. Fill the opening with concrete and a nice cap. How wide will the gate be? Fence is a lot more difficult as you will have a lot of weight depending on the height of the fence. You will also need a deep heavy footing and then lay out your pattern. Very labor intensive. Why a concrete block fence? Wood or wrought iron look nice, is cheaper and easier to install.