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The bottom strand should sit between 12 to 15 inches from the ground. If you have a problem with small critters, you can aim for 8 inches. Three-strand fences should be 16 to 19 inches apart, four-strand fences should be 10 to 12 inches apart, and five-strand fences should be 8 and 10 inches apart.

The most common type of metal fence today is one made of either steel or aluminum. These materials are relatively easy to fabricate, making them much more cost-effective than traditional metal fencing handmade from wrought iron. They’re also much lighter and easier to install, contributing to their affordability and making them more DIY-friendly.

Whether you need a permit to build or install a fence depends on several factors, including your location, the fence's height, its placement in your yard, and the materials used. In many cities and highly populated areas, a permit is required, especially for fences taller than 6 feet. Conversely, rural areas may have fewer restrictions. Typically, backyard privacy fences 6 feet or shorter do not require a permit, while front yard fences often have a lower height limit, sometimes as low as 3.5 feet. There can also be exceptions for properties in mixed residential-commercial zones. It's best to check with your local building inspection or zoning department to understand the specific requirements, height restrictions, and location rules for your area. A professional fence installer can help you navigate this process and often secure the necessary permits for you, though this may extend the project timeline.

There are two things you can do to make a fence replacement easier—but keep in mind that easier doesn’t mean better. First, you can use a jack or some other type of machinery to pull the post out of the ground. If that’s not available, a digging bar can help.

Second, you can backfill the hole with gravel rather than creating a concrete footing. Keep in mind, gravel is less secure. You should only use it if you’re installing a lightweight fence or have heavier, clay soil.