https://fencesupplyonline.com - When buying round rail wood fencing, you want to make sure that you’re choosing an option that will last as long as possible. You want it to be eco-friendly, and withstand weathering and insect-related threats. In the past, that meant buying wood treated with a conventional pressure treatment method. Today, there’s a new option, CopperNap, which can make wood round rail fencing last for a very long time. Even in harsh environmental conditions.