27
Saw a crew in my town set a post in pure sand without a concrete collar
They dug the hole, dropped the post in, and just backfilled with the sand they pulled out. I know that fence is going to wobble like crazy after the first big rain. How do you guys handle sandy soil to keep things solid?
2 comments
Log in to join the discussion
Log In2 Comments
richard_ramirez1mo ago
My uncle built a deck on Lake Michigan dunes. He mixed a bag of Portland cement into the sand backfill, dry. The next rain activated it and basically made a solid plug around the post. It's not a proper concrete collar, but it's a cheap trick that locks sandy soil in place. That fence crew is asking for a call-back in six months.
7
adam_thomas1mo agoTop Commenter
That trick can actually trap moisture against the post. Seen it cause rot way faster in treated lumber. Might hold the sand but ruins the wood.
7