Installing Signature Series Side Mount Cable Railing

Watch this demo installation video on installing Signature Series side mount posts, aluminum handrail, and stainless steel Cable Bullet tensioners.

How difficult is this project?

This project is: DIY-FRIENDLY - ADVANCED

Installing Signature Series side mount posts on level runs is a straight-forward process requiring accurate measurement. Take special care to consider your post layout around stairs. Advanced carpentry skills may be required for complex aluminum handrail joints.

Make the most of your space and enjoy a clearer view with Signature Series side mount posts. The simplified installation process and flexible post placement make side mount posts a beautiful railing solution without minimizing the space on your deck, patio, or stairs.

If properly maintained, all-metal railing can provide a lifetime of beauty and reliability. Depending on your project layout and specifications, installation can vary from DIY-friendly to advanced skill level required.

Continue reading or download the installation instructions:

Side Mount Post Setup Guide PDF > 

Materials List

Supplies:

• Bracket mounting screws (see Setup Guide)
• Post mounting screws (included)
• Plastic composite shims

Tools:

• Drill/impact driver (3/16" bit; 1/4" bit optional)
• T30 Star driver (driver for post mounting screws)
• 3/16" Allen wrench 
• Level
• Tape measure
• Chalk line (optional)

Installation Instructions

1 | Project Guidelines

1. Cable tensioning posts can be spaced up to 20 feet apart. To ensure adequate cable tension (150lbs) use 2-way posts and additional tensioners to cover longer runs.
2. Add cable spacer bars or cable support posts every 42–48 inches to minimize cable deflection under load.
3. Support your handrail as needed with tensioning or line posts. See Setup Guide for post spacing recommendations.

PLEASE NOTE: All Cable Bullet recommendations and rail components are designed to comply with the International Residential Code (IRC).  However, because building codes may vary it is the installer's responsibility to verify that the installed system complies with all applicable state and local building codes.  For more information on Cable Bullet and building code standards, visit our terms page.

2 | Find Bracket Location

Use your post layout to find the location of each post bracket. See Setup Guide for recommendations.

3 | Drill Pilot Hole

Set the bracket aside and drill a single 3/16" pilot hole.

PRO TIP: Mark the mounting screw location with a 1/4" drill bit to keep the bracket from wandering and best center the 3/16" pilot hole in the bracket.

4 | Drive First Mounting Screw

With the bracket in place, drive in the first bracket mounting screw, but do not tighten all the way. Check that bracket is plumb.

5 | Drill Pilot Hole

Mark the second screw location, drill a pilot hole, and drive in the second screw. Check that the bracket is level and plumb.

6 | Tighten All Screws

Repeat the process for the remaining bracket mounting screws. Check that bracket is level and plumb, then tighten all screws.

PRO TIP: Use plastic composite shims to plumb and level your post bracket, if necessary.

7 | Attach Post

Place a post inside the bracket, aligning the tapped holes. Use the head cap screws included with the post and a 3/16" Allen wrench to secure the post inside the bracket. Check that the post is plumb. Repeat the process until all brackets and structural posts are installed.

8 | Attach Top Rail

Your project is now ready for top rail. Complete this process following How to Install Aluminum Handrail on Signature Series Posts.

Looking for more detailed instructions?

Check out our full Signature series railing installation video for in-depth instructions, or feel free to give us a call! We're happy to discuss your project specifics and answer any questions you have!