I am thinking of building a retaining wall for a proposed patio. I was wondering if the retaining wall needs to be arranged as a double skin wall or if a single skin wall will suffice. Any other precautions that I need to take with the building of the wall. I intent to use the left over class 2 Engineering bricks. Its about 300mm deep, the wall will be about 500mm in height.
Thanks in advance.
Thanks in advance.