Installing electricity in your garden shed can seem like an intimidating task if you've never done it before. However, with proper planning and by following electrical codes, you can safely and legally wire your shed without hiring an electrician.

Understanding the Basics of Wiring a Shed

Before you begin, it's important to understand some key concepts:

Determining Your Power Needs

The first step is figuring out how much power your shed needs by adding up the wattages of lights and outlets:

As an example, a basic 10x12 shed might need:

So the total is around 3675 watts. This determines the necessary circuit breakers and wire size.

Running the Electrical Service

There are two options for running power from your house panel to the shed:

100 amp, 120/240V service can support most shed needs. Use #2 aluminum or #3 copper wires to handle the load. Install within approved, grounded conduit.

Installing the Circuit Breaker Panel

The circuit breaker panel divides and protects all the branch circuits in your shed.

When selecting a panel, consider:

For example, a 12-space, 100 amp outdoor panel mounted on the wall provides capacity for plenty of circuits.

Running the Branch Circuits

Next, run wire from the panel to lights, outlets and equipment.

Follow electrical code for:

Also consider GFCI protection for outlets near water sources like spigots.

Installing the Lights, Switches and Outlets

You're almost done! Just install:

Final Steps for a Safe Electrical Shed

Before enjoying your new powered shed, follow these final safety steps:

If all checks out, you now have a professional-quality, safely wired shed ready to power! Turn on your favorite radio station and get building.