Q: I'd like to construct some retaining walls in my garden, but I have no natural rocks, and I'm not prepared to mortgage my house to hire a mason to construct a fine rock wall. Brick is too formal and wood warps. Any ideas?
A: Two possibilities come to mind. Construct a cinder block wall and face it with sculptured rock, available at many building supply centers. This man-made concrete rock is surprisingly attractive and durable.