When building a new dry stone wall it is often surprising how much stone is needed. Partly this is due to the stacking effect of building a wall. It is always gratifying to see a great pile of stone decrease in volume as it gets condensed into the tightly packed structure of a wall. When a new wall or feature is created in an existing garden, protecting the existing features from the large volumes of stone being transported, moved, and worked can be a challenge. In the picture below you can see the use of boards, planks and tarpaulin to reduce the impact to the lawn. The stone in the picture is about 10 tonnes in weight and will be enough to build a small section of garden wall.