Generally, the height of your dog fence should be 3 times the distance from the ground to your dog’s shoulder. For most small breeds, a 4-foot high fence will be more than enough to keep them from jumping out. Medium-sized breeds like Golden Retrievers, Labradors, and German Shepherds will need at least a 5-6 foot fence to stay contained. Large breeds that are also excellent jumpers, such as Greyhounds, may need a 7-foot high fence. 

You can buy wrought iron fencing from a trusted fence installation company near you. You could also opt to buy it privately from a homeowner who is interested in recycling their own wrought iron materials. Manufacturers stopped mass production of wrought iron as steel became more affordable to produce, so you likely won't find it in any local big box stores.

Vinyl and chicken wire are two of the best and most affordable materials for a DIY garden fence. Vinyl is a great option because it is cost-effective, easy to work with, and effective at keeping pests out. A vinyl fence can cost as little as $15 per linear foot, especially if you install it yourself. Chicken wire is even more budget-friendly, costing as little as $2 per linear foot. While chicken wire is more affordable, vinyl is a better choice if privacy is a concern. You can also add chicken wire on top of a vinyl fence for extra security.

By securing posts deeply and ensuring proper drainage around foundations.