How to remove and replace a wood fence post
  • Before digging call 811 – it is the law.



  • Process

    It is best to remove the post from the existing fence panels using a hacksaw to cut the nails. Using a hammer or pry bar will usually damage the horizontal rails, which are required to reattach the panels to the new post. Use a hacksaw to cut the nails flush with the horizontal wood rails.



  • In the area around Dallas and Fort Worth – flat blade posthole diggers are the best to use. Because the soil will stick to the traditional round or circular post hole diggers found at your local home and garden supply store – making the job much more difficult.



  • The process is the same no matter the condition of the existing post. In this example, this post was broken off. In order to remove the remainder of the post and concrete footing, dig a new post hole alongside the old concrete footing.



  • Dig the hole close to the existing fence line and as deep as the existing concrete footing. This will facillitate removal of the old concrete and remainder of the post.



  • One side of the old concrete footing is now exposed. The next step is to break the concrete away from the exposed side of the concrete footing.



  • Using a San Angelo bar (rock bar) is the easiest way to accomplish removal of the concrete. Proper use of the bar is a rising and falling action – not prying .



  • The broken pieces of the concrete are removed by hand – use gloves.



  • The concrete has been removed from one side of the remaining concrete footing. The old wood post is now exposed.



  • The old post can be removed using a San Angelo bar (rock bar) or a Mattock .



  • The old post has been removed and the concrete on the remaining 3 sides is now ready to be removed.



  • Again use the rock bar for this step. Here you see an electric hammer being used



  • Once all of the concrete has been removed – use your post hole diggers to insure the origional hole is 24” deep for setting the new post.



  • If you are going to use a landscape timber – be sure to pick a straight one for your repair.  This can take some time as most of them are warpped right in the store.



  • Use a string from posts on either side to insure proper alignment of the new post – one line at the top of the post and another close to the ground.

    Top



  • Prepare the concrete. Using this technique you will need approximately 1 and ½ 80 lb. sacks of Quikrete or Sakrete  Concrete Mix. Mixing instructions are documented on the bag.



  • The next step is aligning the new post top and bottom using the strings and a bubble level. Use a bubble level to check the new post alignment on 2 sides 90 degrees apart to insure it is level in all directions.



  • Using a shovel fill the entire hole around the post with concrete.



  • After waiting for the concrete to set – usually 24 hours in good weather conditions – cut the post to the desired height and reattach the fence panels using long star drive screws.

    Note: you can use nails but be sure to backup the opposite side of the post with something heavy – like a sledge hammer – to prevent the vibration from damaging the newly set concrete



  • The finished project: Congratulations!



  • Comments? wwilder@swbell.net

    Tools required

    Buckeye posthole diggers http://www.seymourmfg.com



  • 72″ Pencil Point San Angelo Bar – for breaking the concrete



  • Wheelbarrow – for mixing concrete



  • Hacksaw – for cutting nails holding panels to post



  • Variable speed drill – you must have for the star screws



  • Construction string – for aligning posts



  • Bubble level – for insuring the post is level – all around



  • Materials required

    Star drive wood screws 3 ½”– for reattaching fence panel to post (6ea post).



  • Sakrete or Quikrete Concrete mix – 1½ 80lb. bags per post





  • Replacement post – landscape timber or pressure treated pine 4” X 4”