The ideal distance between fence posts depends on several factors, including the terrain, the purpose of the fence, and the material used. For different types of fences, here are some general guidelines:

• Wood and Metal Fences: Posts should be spaced between 5 and 8 feet apart.

• Vinyl Fences: Spacing can be between 6 and 8 feet.

• Chain-Link, Mesh, or Lattice Fences: Posts can be set anywhere from 4 to 25 feet apart, with 4-10 feet being common for chain-link.

• Wire Fences: Spacing can be up to 12 feet apart.

The recommended height for a garden fence depends on its primary purpose. For pest control, the necessary height varies by animal. To keep out small pests like rabbits, a fence should be at least two to three feet tall. If you live in an area with deer, you will need a much taller fence, at least five feet high, to prevent them from jumping over. If the main goal is privacy, the fence should be at least seven feet tall. For purely decorative fences, the height is a matter of personal preference.

Generally, the height of your dog fence should be 3 times the distance from the ground to your dog’s shoulder. For most small breeds, a 4-foot high fence will be more than enough to keep them from jumping out. Medium-sized breeds like Golden Retrievers, Labradors, and German Shepherds will need at least a 5-6 foot fence to stay contained. Large breeds that are also excellent jumpers, such as Greyhounds, may need a 7-foot high fence. 

A split rail fence is not typically considered among types of dog fencing. Many dogs are small enough to slip out between or under rails, and dangerous pests like coyotes can slip in. However, adding wire mesh to a split rail fence can add the security needed for dog safety without compromising the timeless look that makes the split rail style appealing.