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How to run an ethernet cable through the wall

Updated April 17, 2017

Running an Ethernet cable through the wall can be a challenging project, but is not without benefits. An excess of computer cables can prove to be unattractive and a safety hazard if not secured properly. Running an Ethernet cable through the wall to reach a network centre is a clean way to achieve connectivity without an unsightly mess. Cables can also be run through the wall to the next room for networking.

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  1. Map out the best path for the cable to run from your computer to its destination. Consider a path that crosses as few framing joists as possible, such as entering the wall and going up through the ceiling to a spot above the final destination then down through the wall.

  2. Cut a 3-inch by 5-inch hole where you want the cable to enter the wall using the keyhole saw. Cut the same dimension holes over any joists the Ethernet cable will cross over and where the wall and ceiling intersect over your desired route.

  3. Run the cable through the wall using the fishing tape and the holes you cut as a route.

  4. Chisel a groove in any joists the cable crosses to allow the cable to lay flush as it passes over to the next wall space. Install a nail guard over each joist with a cable passing over it to ensure the cable isn't accidentally damaged down the road by a nail.

  5. Patch the holes by returning the cut dry wall squares to the place from which they were taken. Using a drywall patching compound, patch around the squares.

  6. Paint the wall where the drywall was cut.

  7. Warning

    Wear goggles and follow safety precautions when operating electrical equipment and handling chemicals and compounds.

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Things You'll Need

  • Ethernet cable with sufficient length
  • Fish tape, or electrical fishing wire
  • Keyhole saw
  • Chisel
  • Nail guards
  • Drywall compound
  • Wall paint
  • Protective clothing
  • Goggles

About the Author

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