Cement Wooden Fence Posts

Pour the concrete into the hole until it s 2 3 in.

Cement wooden fence posts.

Soak the bottom of the wooden fence posts in a wood preservative containing copper napthanate such as cuprinol. This gap will widen with natural expansion and frost allowing water to pool here and cause rot. Mix fast setting concrete in a wheelbarrow. Seal it with a sealant that bonds to concrete and wood such as some silicone sealants or exterior acrylic latex caulk.

Put the post in the center of your hole. 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. The diameter of your post hole should be three times the diameter of your post. Purchase a quick setting concrete from your local hardware store.

Seal the gap between post and concrete. Make sure the post is plumb before allowing the concrete to set. Set the end of the post on top of your gravel in the middle of the hole. Apply high quality exterior acrylic caulk or silicone specifically designed to adhere to concrete at the base of the post.

Caulk around the fence post base. Inspect your posts at least once a year ideally in spring or fall and reapply paint or stain as necessary to protect the wood and keep your fence looking its best. Pour the dry mix into the tube. Set the post into the form and temporarily stand straight.

So six foot high fence posts ideally need to be buried three feet into the ground. Setting the post 1.