Alibaba.com offers 4 retaining wall products. About 50% of these are other construction & real estate. A wide variety of retaining wall options are available to you, There are 4 retaining wall suppliers, mainly located in Africa. The top supplying country is South Africa, which supply 100% of retaining wall respectively. Retaining wall products are most popular in Mid East, Western Europe, and Eastern Asia. You can ensure product safety by selecting from certified suppliers, including 1 with ISO9001 certification.