Critical questions about workshop wiring - WOOD Magazine wwwmagazine›Your Workshop›Lighting and WiringCritical questions about workshop wiring. See if your shop has the power it needs for the woodworking you want to do. Tools need amps If your home was built before the 1950s and hasn't been electrically updated, you may have only 60-amp service. If that's the case, if you still have a fuse box, or if you frequently trip breakers, you need Home Workshop Electrical Wiring - Ask the Electrician Planning Home Workshop Electrical Wiring. Question: I will be running new 120v and 240v wiring for my home workshop. A friend told me that I must use a home-run for each 240v outlet. Is that true? If so, is there an alternative?