Stone is the most ancient of building materials, but the most durable. The rustic wall is made of large stones with smaller stones used as filler. This is a most durable and attractive wall to look at, however it involves hard work. The wall consists of layers of large stone-arranged one above or behind another.
Smaller rocks act as filler between.
Long flat stones called 'bonding stones' span the walls full width and are set at routine intervals in the wall. Gravity and friction alone hold a dry motarless wall together. The weight of each must push steadily against the stones below to keep the wall from tumbling down. Each piece must be placed so that it rests on a flat and strong bed and overlaps 2 or more stones beneath it. The pattern will be somewhat like brickwork.