You can save a great deal of money if you build your retaining wall. This is an excellent project for a do-it-yourself homeowner and they can be created out of a number of materials, including synthetic wall units. You will need to be capable of heavy lifting, as often the job includes a lot of shoveling, lifting, moving stones, or moving wall sections or planks. You will want to remember the fact that soil settles and be prepared to put in additional filling. A retaining wall is a project most people can manage themselves.