Barrette Outdoor Living has introduced RDI Elevation Rail—pre-strung infill cable-rail panels that can expand up to a maximum of 6 feet between posts. Designed for both decks and stairs, the rails, posts, and caps are made of cast aluminum, while the continuous cable is 316 stainless steel. According to the manufacturer, no specialty tools are needed, except maybe good cable cutters to prevent fraying the cable.