Cement Wooden Fence Posts

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

Cement wooden fence posts.

This gap will widen with natural expansion and frost allowing water to pool here and cause rot. Pour the dry mix into the tube. Set the post into the form and temporarily stand straight. The general rule of thumb when setting a post is that the depth of the post s hole needs to be 1 3 to 1 2 of the actual above ground height of the post.

Mix fast setting concrete in a wheelbarrow. Soak the bottom of the wooden fence posts in a wood preservative containing copper napthanate such as cuprinol. Seal the gap between post and concrete. 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.

Seal it with a sealant that bonds to concrete and wood such as some silicone sealants or exterior acrylic latex caulk. Set the end of the post on top of your gravel in the middle of the hole. Purchase a quick setting concrete from your local hardware store. Place the form tube into the hole.

Setting the post 1. Once the initial curing is complete seal the gap around the base of the fence post. Make sure the post is plumb before allowing the concrete to set. The diameter of your post hole should be three times the diameter of your post.

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.