How to Wire a Three-Way Switch

Plans and instructions to change a single-pole switch to a three-way switch.

Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

  • 4-in-1 screwdriver
  • Needle-nose pliers
  • Non-contact voltage tester
  • Utility knife
  • Wire stripper/cutter
  • Electrical tape

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

  • 14-3 or 12-3 cable
  • Three-way switches (2)