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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.

No, fence posts aren’t always set in concrete. If you don’t want to use concrete footings for your posts, expanding foam is a popular alternative. Expanding foam and concrete each have certain pros and cons. For instance, foam is easier to install and more sustainable, but concrete is sturdier and less expensive.

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.

You should stain both sides of your fence to get the full benefits. Fences often fall along property lines, so you may want to save a buck by leaving your neighbor’s side in the dust. If you do that, all you get is a slightly better view. Moisture and UV rays can still sneak in through the side that’s unpainted or worn down and damage your fence. Rot and rust will spread, even if you can’t see it from your side of the lawn.