Feeney’s DesignRail cable-rail framing kits come in 6-foot sections for installation between existing posts. Each section includes aluminum top and bottom rails, a pre-drilled intermediate picket, and connecting hardware. Cables are not included. Kits for level rails and stair rails are available in three colors and can be used for interior or exterior applications. Cost: approximately $185. Feeney, 800.888.2418, feeneyinc.com