Anchoring Posts


Old 09-09-00, 09:36 PM
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I'm replacing an old deck and would like to know how I can best anchor the new posts to an existing concrete pad. The old posts sat right on the concrete, but this time I want them to sit just off the ground. To set new anchors in existing concrete will I need to do some drilling or is there something I can use that just sits right on the surface and still allows the posts to be slightly raised off the ground? My deck is about 8' tall so I want maximum stability.
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Old 09-09-00, 10:06 PM
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Keep the wood off of the concrete. Simpson makes several posts bases that are just for this application (ABA44, ABE44, ABU44, ...). Rent a hammer drill and use the little 1/4" X 1-1/2" drive pin anchors to attach the post base to the concrete.

The post bases I mentioned are for 4X4 posts -- if yours are different, change the numbers to match the size of post you are using. A 4X6 would need a ABA46, a 6X6 would need a ABA66, etc.

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