Final Cable Tensioning

What happens in this clip

With all cables installed and hand-tightened, proceed to the final tensioning. Work from the center cables outwards to ensure even tension across the entire railing. Use a wrench or the manufacturer's specialized tensioning tool to tighten the adjustable hardware. Apply sufficient tension to make the cables taut, but be careful not to overtighten, which could damage the posts or hardware. Periodically check the tension and adjust as needed until all cables are uniformly tight and meet safety standards.

Goal: Achieve proper tension across all cables for safety and aesthetics.

What's used

Tools

• Manufacturer's Tensioning Tool
• Wrench
• Socket wrench

About the full video

This project provides a concise overview of installing cable railing on stairs. It covers essential layout considerations, including code-compliant spacing, proper hardware installation techniques, cable cutting and seating, and the final tensioning process to achieve a secure and aesthetically pleasing railing system.

Step 9 of 11: Install Tensioners and Tension Cables

On the final post of each run, install a tensioning device (e.g., a turnbuckle or a threaded terminal with a nut). Thread the cable end through the tensioner and secure it, often by swaging or using a specialized fitting. Gradually tighten the tensioners to remove slack from the cable. Aim for a taut cable that produces a clear 'ring' when tapped, but avoid over-tensioning, which can damage posts or hardware. Check tension regularly during the process.

Open this step in the guide

Every video in Cable Railing Installation

1. Step 1: Layout Post Locations

   • 6:04–7:34 Install Stair Posts
   • 0:34–0:52 Determine Post Positions
   • 0:09–0:56 Plan Post Placement and Gather Tools

2. Step 2: Drill Post Mounting Holes

   • 0:41–1:07 Pre-drill Mounting Holes
   • 1:54–2:34 Pre-drill Post Mount Holes
   • 0:05–0:09 Install Base Posts

3. Step 3: Attach Railing Posts

   • 6:04–7:34 Install Stair Posts
   • 2:06–2:45 Install Railing Posts on Stairs
   • 3:04–3:39 Mount and Secure Post with Through-Bolts

4. Step 4: Mark Cable Attachment Points

   • 0:10–0:35 Understand Cable Rail Layout and Code
   • 0:47–1:53 Establish Cable Spacing and Drill Pilot Holes
   • 0:21–0:32 Measure, Mark, and Install Eye Straps on Posts

5. Step 5: Install Cable Termination Hardware

   • 3:38–7:37 Install and Tension Cables with Lag Screws
   • 8:19–10:38 Feed and Crimp Cable (Fixed End)

6. Step 6: Cut Cables to Length

   • 2:23–3:38 Cut Cables and Plan Installation Order
   • 0:59–1:19 Cut the Cable
   • 0:53–1:00 Measure, Cut, and Insert Cable

7. Step 7: Attach Cables to Terminals

   • 8:19–10:38 Feed and Crimp Cable (Fixed End)
   • 0:16–0:32 Insert and Anchor Cable on First End
   • 6:21–7:49 Tension and Cut Cables

8. Step 8: Thread Cables Through Posts

   • 3:19–4:10 Thread Cable Railing
   • 0:08–0:09 Thread Cables Through Railing Posts
   • 0:09–0:29 Thread Cables Through Hardware

9. Step 9: Install Tensioners and Tension Cables

   • 1:09–1:18 Final Cable Tensioning (this video)
   • 0:44–0:51 Install and Tension Cable Strands
   • 0:29–0:46 Tension the Cables

10. Step 10: Trim Excess Cable

    • 6:43–7:27 Trim Excess Cable and Tighten Nuts
    • 0:24–0:25 Cut Cable Overhang
    • 0:46–0:54 Trim Excess Cable

11. Step 11: Final Inspection and Testing

    • 0:16–0:28 Perform Final Inspection and Safety Check