Build retainer walls, patios,pavers,concrete. Please visit web site: Lhensonenterprises.net, or Lhensonenterprises.com. Cell phone 828-231-7250. Have been building retainer walls starting in 2004 through 2012. Have pictures of work on web site. A retainer wall consist of four major factors. Number 1 is the foundation. Number 2 is the drain behind the wall. and Number 3 is the foot of stone behind the wall. Number 4 is the geo mat and the compaction in lifts to give the wall stability. I will