The lifespan of wire fencing heavily depends on factors like gauge, material, coating type, and environmental conditions. However, with proper maintenance, many wire fences last for 20 to 30 years. Coastal areas or regions with high rainfall may see reduced lifespans of 10 to 15 years due to increased corrosion risk.

A fence gate can sag for several reasons. The issue often stems from the hardware, such as damaged or bent hinges, or loose screws that can no longer support the gate's weight. The gate frame itself might also have come out of square due to failing supports. Alternatively, the problem may not be the gate but the supporting fence post, which could be leaning or out of place. In many cases, fixing a sagging gate is as simple as tightening the hinge screws or upgrading to more robust hinges.

Installing a picket fence includes measuring and marking the area where you plan to build the fence, laying out all of the materials, digging post holes, setting the posts using concrete, measuring the rails, attaching the rails, attaching the pickets, and then painting or staining the fence if you chose a wooden fence material. 

You’ll need to bury the garden fence about 1 foot underground. It’s tempting to save on materials by burying the fence just a couple of inches, but if you do so, determined pests will still be able to dig under the fence and access your plants. Burying your garden fence deep into the soil is an important step that allows you to attach a wire barrier to the fencing. 

Burrowing animals (like voles, moles, rabbits, and gophers) can’t dig or chew through this wiring, meaning that you’ll be keeping your prized petunias or your robust veggie garden from being eaten.