3 rail smooth top double picket aluminum fence. aluminum fence disadvantages:. high quality japanese anodized aluminum gates, fences, carports and patio covers. white raf 201 15/8\” spacing aluminum fencing for small dogs. easy fence for the property line at the edge of the woods to block view of the neighbors. polaris design infill panel. ornamental aluminum fencing, wrought iron fencing, pool fencing, security fencing.