To properly customize a fence cut for an irregular landscape feature, you first need to measure the distance around the obstacle at the height of your planned fence. Add a few inches for clearance to ensure that the fence doesnt rub against the object. Then, sketch out how the fence will connect with the obstacle on both sides, planning sections that can be angled or curved if needed. Finally, cut your fencing material accordingly and install it so that it contours smoothly around the feature while maintaining structural integrity.