21 Contribution between adjoining owners—generally
(1) Adjoining owners are each liable to contribute equally to carrying out
fencing work for a sufficient dividing fence.
(2) An adjoining owner who
wants to carry out fencing work for a dividing fence to a standard greater
than the standard for a sufficient dividing fence is liable for the fencing
work to the extent that it is greater than the standard for a sufficient
dividing fence.