The post is attached to concrete using Simpson Tie 4x4 post tie. The top of post flexes a good 2-3 inches when gate shuts against it. How can I stabilize it?

  • 1
    How about a few pictures so we can see what you see.
    – JACK
    Sep 16, 2020 at 19:08
  • 2
    My hunch is that the post is not actually "set into concrete", but the tie is. Am I on the mark? Please revise to add details and clarity to your situation. Otherwise, we're just throwing darts in the dark.
    – isherwood
    Sep 16, 2020 at 19:25

2 Answers 2


I don't think I've ever seen a Simpson product that's intended to hold up a gate post. They're all designed to lift a post up off the concrete, but not to support it laterally.

Take it all apart and put a longer post in the ground, like nature intended.

  • I Concur, even this 'super-beefy' product is only rated for up and down loads, no side load such as a gate would experience. Simpson Strong Tie CBSQ44-SDS2HDG 4x4 Post Standoff Column Base
    – mark f
    Sep 21, 2020 at 19:32

There are many variants of Simpson Strong Tie post supports. Most bolt into the concrete pad or have legs embedded into the fresh poured concrete. The post is nailed or bolted to the tie. The compliance is likely at that joint, and you can up-size the through bolts to tighten things up. If the compliance is actually at the pad to Tie, the fix is more involved as it could involve getting into the concrete. Can you provide pics of your specific Simpson Strong Tie configuration to assist?

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