Printed from: https://conservationhandbooks.com/dry-stone-walling/rebuilding-a-free-standing-wall/use-of-batter-frames/
With new walls, the degree of batter is sometimes specified in the walling contract, if there is one, and occasionally this may happen for major rebuilds. However in many cases, and for smaller works, there will be no specification. To get an idea of the required batter, look at the wall you are repairing or...