Use a Fence. When all else fails, protect your beds and borders with a low fence. Here, a low picket fence was all that was required to keep this bouncy bruiser at bay. You'll be surprised at how even the most meager fence can be a visual barrier for your dog. Here's a Hint: Check your fence once a month to be sure your pet hasn't dug an escape route or gnawed a hole through a hidden corner.
Here is a great mix of metal and wood. this can be used for deck handrails, small fences, dogruns, or made into panels this could be hung on an existing fence to use as a trellis for espalier apples or grapes or ???