We Build a Wall for a Flower Bed - Page 6

Paul Lays the First Stone

Laying the first stone presented some problems. First you need to set the curve to the string where the straight wall begins. Second the stone on the straight wall string needs to be half buried, and that determines how deep the first stone should be. So I have two levels on my stone. The small one sets that stone level. The long one set how deep the first one must be to equal the same height as the stone on the straight line.