How To Wire A Garage: Easiest Step-By-Step Guide

There will be many different situations in which you need to rewire the garage or install wires in the garage. As we need to have a garage so that it is able to provide power to the appliances or the tools which we use to run. If you have a poorly planned electrical system and in case of overloading it can lead to many difficult situations like an electrical fire. This article will guide you through how to wire a garage step by step.

How to wire a garage? 

The following are the steps showing how to wire a garage:

Step 1:

First, you need to set the electrical box in the studs according to the place where you are going to use it. A person needs to measure the electrical box and mark it before placing the box. 

Wire A Garage
Wire A Garage

Step 2:

After measuring the mark with a pencil or marker you should pre-drill the holes so that the cable is able to run through each stud. While drilling you need to drill it as close to the frame of the electrical box and not drill on flat walls because for that you need to use conduit to run the cables. 

Step 3:

  • The next step is to run the cable wires through each box and for that you need to be aware to hold the wire at least 1-¼ inch away. In this process, you are going to thread 3 or more than three cables from an electrical box so you need to use the stacker staples. 
  • After running the cable wire to the electrical box we need to staple the untwisted cable at every 4 feet which are outside the box until you reach the next box.
  • After reaching the next box, cut the cable in a way that it is a foot longer than the length of the box. Repeat these same steps until you finish running the wire through the electrical box. 
Wire A Garage
Wire A Garage

Step 4:

Make sure to staple the wire tightly around the beam’s corners and gable. As if you tightly fit the table it will need an organized way and also will help you to prevent any damage to the wire, especially in case of installing drywall over it. 

Step 5:

In case you are going to install it on drywall or a flat wall you need to protect the wire with a conduit. Because if we use to conduit it will act as a cover to the exposed wire. Using conduit secured to use it by fitting the screw into the wall. After completing all the steps of wiring all the necessary areas, cap the end of the wire. you should clean the workplace.

Wire A Garage
Wire A Garage

Tools required:

The following are the tools required to wire a garage:

  • Chalk line. 
  • Cordless drill. 
  • Drill bit set. 
  • Drill driver cordless. 
  • Electrical tape. 
  • Extension cord.
  • framing square. 
  • Hammer. 
  • Hearing protection. 
  • Lineman plier. 
  • Locking pliers. 
  • nippers. 
  • Non-contact voltage tester. 
  • Pliers. 
  • Safety glasses. 
  • Shop vacuums. 
  • Screw gun. 
  • Slip joint pillar. 
  • Step ladder. 
  • Stud finder. 
  • Tape measure. 
  • Utility knife. 
  • Voltage tester. 
  • Wire stripper or cutter. 
Wire A Garage
Wire A Garage

Material required for wiring the garage:

The following are some materials required to wire a garage:

  • ½ inch PVC couplings
  • ½ inch PVC male adapters. 
  • ½ inch electrical connector locknuts. 
  • ¼ inch two-piece toggle bolts. 
  • 10 ft length of ½ inch. 
  • 15 amp receptacle. 
  • 15 amp single pole switch. 
  • 4-inch square raised covers. 
  • 90-degree PVC bend with a hub. 
  • Black extender. 
  • Bulbs or tubes. 
  • Container of PVC electrical conduit glue. 
  • Green THHN 14 gauge. 
  • Light fixtures
  • PVC conduit. 
  • Screw in drywall anchors. 
  • Use 12 gauge wire
  • White  THHN 14 gauge. 
  • Wire connector. 

Importance of wiring a garage:

Once the garage is installed does not get the same type of attention that’s to the house in case of electrical work. The following are some points showing why to wire a garage:

  • In case the garage has few outlets and needs a few more. 
  • If it is too dark and does require more light. So in all these cases, you need to wire a garage but you need to know about all the requirements for wiring a garage which is being explained above. 

What are the things to be considered to wire a garage? 

Before wiring the garage the following are some points you need to be considered:

Attached or unattached garage:

Having an attached garage is easy to be wired in its own circuit and an unattached garage needs a separate system to run the garage. There are many people who cut corners and run the garage by using an extension cord but it is not sustainable. 

Exposed wire or covering with drywall:

In case wiring is done at an unfinished garage then you can wire the garage without using wall covering but wiring a garage without using any drywall makes the wire lack in the protection of the electrical system. In that case, you have to install the wire in a way that keeps the wire and receptacle compliant. 

Wire A Garage
Wire A Garage

A number of outlets required:

You should plan about the outlets required before by marking where you are going to install the main outlets and by marking that the outlets need to be placed 6 feet apart and 4 feet off the ground. In order to remember the marking place an X Or tape where the outlet is required. 


With the mentioned above steps you can easily wire a garage but you need to care in case you are wiring the garage by yourself how to hold the cable wire, maintain the distance, etc. 

Rick Costa

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