Why fences lean (and how to keep yours straight)
Drive around Saratoga Springs for a while and you'll see fences tipping one way or another. It's almost never bad luck. The cause is nearly always underground.
The posts are too short
A fence is only as straight as its posts, and a post is only as good as the hole it's in. Plenty of fences get set 18 to 24 inches deep, sometimes in packed dirt with no concrete at all. That works for a little while. Then a few winters go by.
Frost pushes them up
When wet soil freezes, it expands and grabs onto whatever's in it. A post that doesn't reach below the frost line gets lifted a little every time the ground freezes, and it doesn't quite settle back when it thaws. The frost line in Utah County is around 30 inches, so that's the shallowest we'll dig.
Wind does the rest
A 6-foot privacy fence is basically a wall, and a wall catches every gust. Saratoga Springs gets plenty of wind, and lots on the edge of a subdivision or facing open fields take the worst of it. Every gust rocks a shallow post a little, the hole gets a little bigger, and eventually the fence leans with the wind. Clay makes it worse, since it goes soft when it's wet.
Why gates sag
A gate hangs off one side of one post, so that post is always being pulled over. If it's the same size as every other post and set the same way, it'll lean in toward the gate over time, and then the latch stops lining up. Gate posts need a bigger, deeper hole and more concrete, and on vinyl fences, a steel or aluminum insert. The gate itself needs a brace or a frame so it doesn't rack out of square.
If your fence is already leaning
- One or two posts: these can often be dug out and reset in concrete without replacing the panels.
- A whole run: tends to mean every post was set the same way, too shallow. Resetting all of them costs a good chunk of a new fence, so it's worth pricing both.
- A sagging gate: sometimes it's just the hinges or the gate frame. If the post itself is leaning, it needs to be reset.
- Bracing it with a 2x4: buys you a season, maybe. It doesn't fix anything underneath.
Text a couple of photos to (801) 346-6552 and we'll tell you which one you're dealing with.
Building one that stays straight
Dig below the frost line. Set every post in concrete, and give corner, end and gate posts bigger holes. Keep post spacing at 8 feet or less on exposed lots, and put metal inserts in vinyl gate posts. There's nothing fancy about any of it. It just takes more time and more concrete, which is exactly why it gets skipped.