fencing system. Purpose of the Fence The first consideration in deciding the best fence is the purpose for which it will be used. Livestock protection and confinement are the main reasons for considering fencing, but the fencing needs for various types (species, age, breed, production system) of livestock vary widely.Jul 25, 2017 · This prevents the wood in the ground from rotting or at least makes the posts last longer. Most fence posts are a standard size of 4ft x 4ft x 8ft. If you have a fence taller than the standard 6ft, then you will need taller posts to go with it. In most cases one-third of the posts resides underground while two-thirds is above.Aug 27, 2015 · 6. Main posts. Post spacing varies according to the conditions and the type of wire used. For standard mild steel wire, posts should be no …Mar 27, 2017 · On this fence, we decided to use the edge of a fence board to keep the gaps consistent. Place the first board along the corner post and use a 4- or 6-ft. level to find plumb. Nail it home, using two nails per rail location. Place the spacing block next to the first board and position the second board against it.