In an exclusive interview with House Digest, our expert carpenter and remodeler Bob Beacham said that the culprit is usually your fence posts ... are made from wire mesh or another lightweight ...

use studded T-posts (e.g., Thealyn 6-foot metal posts) and a mesh fencing roll, such as FOREHOGAR vinyl-covered wire fence. Use a string line to line up your posts around the fenced area.