To effectively keep animals out of your yard with a fence, choose a fence that anchors to the ground to deter digging. Also, consider adding a barrier below the fence to prevent burrowing. 

To make your yard less desirable to animals, eliminate food sources like a vegetable garden, and ensure your garbage cans are sealed and tamper-proof. Installing motion-activated devices like lights or sprinklers will startle animal intruders. Also, a fence won’t work well if you forget to keep gates closed and secure. If you still face persistent animal intrusion issues, contact a wildlife control expert who can offer specialized solutions.

The ideal spacing for four-by-four residential fence posts is usually about 6 to 8 feet between posts. However, if the fence is particularly high or you live in a very windy region, you might want to space them closer together for better stability. A fence pro can help you decide on your post spacing. 

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 can use a few different tactics to prevent your deck gate from sagging. Aside from using strong, rot-resistant woods, introducing a diagonal element—such as a tension rod or solid piece of wood to act as a brace—across the gate will offer better support. You can also use rigid joists to prevent the gate from sagging.