Cable Railing
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Railing is the first thing you see when you walk out your door or approach your house from the curb. See real life projects to get ideas on how to define your space in a way you’ll love for life.
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Design style, material options, safety considerations, budget—get the full scoop on everything you need to know to make the right product decision for your home and your project.
Open up your view with cable railing systems
Cable railing infills create clarity in your design. With slim horizontal lines and minimal visual weight, it keeps the focus exactly where it belongs — on the view. Whether you’re installing cable deck railing along a backyard deck, framing a porch, finishing stair runs or defining a balcony edge, cable railing delivers openness without sacrificing structure. The result is modern, architectural and intentionally understated, allowing the landscape and surrounding design elements to take center stage.
Design intentionally with cable railing systems
The best cable railing systems are thoughtfully engineered, not improvised. Pair cable infill with aluminum posts for crisp contemporary definition. Blend steel cable railing for decks with composite railing featuring Composicore® to introduce warmth and long-term water resistance. Every detail — spacing, tension and finish — contributes to a look that feels balanced, refined and built with purpose.
Bring your cable railing vision to life with RDI® Railing
Steel cable railing requires precision, and RDI Railing delivers systems designed to simplify the process. Our OneTen™ built-in tensioning control system eliminates the need to tension each cable individually and reduces seasonal adjustments, making installation more efficient and long-term performance more dependable. With RDI Railing, cable railing is made to perform beautifully from day one.
Frequently asked questions about cable railing
Cable spacing is typically designed to meet code requirements that prevent a 4-inch sphere from passing through the infill. Exact spacing may vary based on local codes and system design. RDI Railing cable railing systems are engineered for compliant spacing when installed according to guidelines.
Span capability depends on the post system and structural support. Many cable deck railing installations are designed for 6- to 8-foot spans between posts, though this can vary by application. Proper post placement ensures cable tension performs as intended and maintains long-term stability.
Common cable sizes for deck railing applications include 1/8-inch and 3/16-inch stainless steel cable, depending on system design and local code requirements. RDI Railing steel cable railing systems are engineered with compatible components to ensure proper fit, tension and performance.
Yes. When installed correctly and tensioned properly, cable deck railings are safe and code compliant. Systems like OneTen™ built-in tensioning control help maintain consistent cable tension and reduce the need for individual adjustments. Proper installation is key to long-term safety and performance.
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