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How Do you Run an Ethernet Cable Through Walls?

How Do you Run an Ethernet Cable Through Walls?

If you’re setting up a network in your home or office, one of the most important considerations is how to run Ethernet cables through walls. Whether you’re upgrading an existing network or starting from scratch, properly routing your cables is essential for a reliable and efficient connection. In this guide, we’ll walk you through the steps to run Cat6 plenum cables through walls, ensuring a seamless networking experience.

Understanding Cat6 Plenum Cable

Before diving into the installation process, let’s take a moment to understand what Cat6 plenum cable is and why it’s the preferred choice for many networking applications. Cat6 plenum cable is a type of Ethernet cable specifically designed for use in plenum spaces, such as the area above a drop ceiling or below a raised floor. Plenum spaces are areas in a building that facilitate air circulation for heating, ventilation, and air conditioning (HVAC) systems.

Preparing for Installation

Before you start running cables through walls, it’s important to gather all the necessary tools and materials. Here’s what you’ll need:

  • Cat6 plenum cable
  • Fish tape or fish rods
  • Drill with a long, flexible drill bit
  • Wall plates and Ethernet jacks
  • Cable staples or clips
  • Cable tester

Planning Your Route

The first step in running Ethernet cables through walls is to plan your route. Identify the locations where you’ll be installing Ethernet jacks and determine the most efficient path for your cables. Keep in mind any obstacles such as studs, electrical wiring, or plumbing that may be present in the walls. It’s also a good idea to measure the distance between your starting point and endpoint to ensure you have enough cable.

Making Cutouts

Once you’ve planned your route, it’s time to make cutouts in the walls to accommodate the Ethernet cables. Using a stud finder, locate the studs in the wall and mark the locations where you’ll be making the cutouts. Use a drywall saw or utility knife to carefully cut holes in the drywall, making sure to leave enough space for the cables to pass through. Be mindful of any electrical wiring or plumbing pipes that may be hidden behind the walls.

Running the Cable

With the cutouts in place, it’s time to start running the Cat6 plenum cable through the walls. Start by feeding one end of the cable through the first cutout and using fish tape or fish rods to guide it through the wall cavity. Take care to avoid bending or kinking the cable, as this can affect performance. Continue feeding the cable through the walls until you reach the endpoint.

Terminating the Cable

Once you’ve run the cable to its endpoint, it’s time to terminate it with Ethernet jacks. Start by stripping away the outer jacket of the cable to expose the inner wires. Use a punch-down tool to terminate each wire onto the corresponding terminals on the Ethernet jack. Be sure to follow the wiring scheme specified by the jack manufacturer to ensure proper connectivity.

Testing the Connection

With the cables installed and terminated, it’s time to test the connection to ensure everything is working properly. Use a cable tester to check for continuity and verify that each cable is properly connected. Once you’ve confirmed that the connections are good, you can patch the cables into your network equipment and start enjoying high-speed Ethernet connectivity.


Running Ethernet cables through walls may seem like a daunting task, but with the right tools and know-how, it can be a straightforward process. By following the steps outlined in this guide, you can ensure a reliable and efficient network connection throughout your home or office. So don’t let the thought of running cables through walls hold you back – with a little planning and preparation, you’ll be up and running in no time.

Monk Cable is here to help with all your networking needs. Whether you’re looking for Cat6 plenum cable, Ethernet jacks, or professional installation services, we’ve got you covered. Contact us today to learn more!


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