• Double-click the site terrain group to open it for editing
  • To “dig” the holes in sketchup, select the faces marked out previously by draping the guides and delete them
  • When building this will take a bit more effort, as you will be digging the holes with a spade to 0.9m deep, or further to suit the ground conditions
  • The building inspector will need to approve the depth of the holes before the concrete foundation piles can be poured
  • In sketchup, finish by closing the group again