I am currently undertaking the pretty expensive project of building a natural looking stone retaining wall. I already have my trenches dug and lined with gravel, but I have one question that I need an answer to before I start building. I am building it against a wooden fence, there are going to be several layers of height in my design with 1', 2' and 3' sections which will have the respective amount of soil contacting the wooden fence. Obviously, I over looked that one detail before I started digging. I need to come up with a means of keeping the soil and runoff water from touching the fence, or this stone wall project will turn into a fencing project. I assume that I am probably going to have to build the additional walls against the fence out of cinderblock/brick. But before I do that, is there a readily available material that would be cheaper (and easier) to assemble to accomplish the job?
thanks for any input