Putting Fence Posts On Concrete

Dig post hole so diameter of the hole is 3 times the width of the post i e the hole for a 4 wood post should be about 12 inches wide.

Putting fence posts on concrete. Place the form tube into the hole. Learn how to dig post holes and set 4x4 posts with gravel c. Two 50 pound bags of fast setting concrete will set a 4 inch by 4 inch or a 4 inch diameter post in a 10 inch diameter hole. Set the post into the form and temporarily stand straight.

When installing a fence on an existing concrete pad some fence installers prefer to core drill through the concrete and set posts the traditional way embedded in concrete underground. Caulk around the fence post base. Once you ve finished digging your post holes add about three to four inches of gravel into the bottom and compact it using a post or a 2x4. Make sure the post is plumb before allowing the concrete to set.

But before you decide to put one up yourself learn how to set your fence posts properly to ensure that. It s also a good idea when installing gate posts to provide extra stability. Core drill holes through concrete. Concrete may be necessary if you are installing a fence in sandy soil or in very soft muddy soil.

Apply high quality exterior acrylic latex caulk or silicone specifically designed to adhere to concrete at the base of the post. Using a rented core drill you can drill a hole through your concrete slab for each fence post. The main downside to concrete is its ability to trap water around the post. Fast setting concrete is ideal for installing fence posts since it doesn t need to be mixed in a bucket or a wheelbarrow.

Then set your post in place and use a level to ensure that it s perfectly. The depth of the hole should be 1 3 1 2 the post height above ground i e a 6 foot tall fence would require a hole depth of at least 2 feet. Pour the dry mix into the tube. This will seal the gap between the concrete and post that s caused by freeze thaw cycles.