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A chain link fence typically lasts between 15 and 20 years, but with proper maintenance, it can last for 30 years or more. To preserve the fence, it's important to keep the mesh wire tight, which can be done with a come-along tool every 6 to 12 months. Investing in a fence with a galvanized, powder-coated, or vinyl-coated finish can increase its lifespan to 20 to 30 years and reduce maintenance needs, as these coatings provide extra protection against the elements.

The depth of the fence posts depends on the height of your fence. If you’re installing a 6-foot fence, then digging 2-foot-deep holes for the fence posts will help ensure a secure installation. However, if you’re installing an 8-foot fence, the posts will need to be deeper than 2 feet to support the structure properly. Also, consider how far apart the fence posts should be to provide adequate support.

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.

When deciding to replace or repair your existing fence, consider the 20% rule that fence builders reference. This rule states that if more than 20% of your fence needs repair, you should skip the repair and replace it. Additionally, if your fence is nearing the end of its life, it's often best to replace it.

Repairing the fence is a good option when you have minimal damage or damage from a specific event versus wear and tear. Your fence repair professional can assess the damage and compare the repair price with the cost of a new fence.