A knee rail or birdsmouth fencing system is a low-level barrier that uses posts with a notched “birdsmouth” cut to support horizontal rails. This design creates a neat, stable connection that clearly defines boundaries without blocking visibility. It’s commonly used in parks, pathways, car parks, housing developments, and other public spaces where guidance and safety are needed without a full-height fence.

Our knee rail in recycled plastic offers major advantages: it won’t rot, warp, or splinter, and it resists weather, UV exposure, and vandalism. It also requires almost no maintenance, stays looking clean and consistent, and provides an eco-friendly, long-lasting alternative to timber.