Once you know what kicks you into nail-biting drive, you can try to find other ways to cope. Keep your hands or mouth busy. Find something to fiddle with -- a stress ball, a worry stone, or even a pen to click.
For simple interlocking blocks, the retaining wall cost would be approximately $15 to $30 per square foot. Therefore, for a 25-by-4-foot wall, the entire retaining wallâs cost would be anywhere from $1,500 to $3,000.
Contact retaining wall suppliers for materials quotes. Based on regional NSW council estimates, the cost* of having a one metre high treated pine or block retaining wall built is about $270 per linear metre versus about $440 per metre for a brick retaining wall.