Have a project to build a boulder rock wall but are confused about where to start? These construction projects can be extremely tiring and hectic if you do not know how to get the correct contacts that would not only help you get the numerous approvals but also guide you on the materials to be used. Firstly, you must consult with a good vendor who is willing to guide you through the process of sandstone wall construction. It is of paramount importance that the supplier has secondary contact that would help you identify the materials required for such construction.