The Electrical Code Requirements for a Detached Garage

The Electrical Code Requirements for a Detached Garage
Written By
David Brown
David Brown
Published: Aug 25, 2010
Updated: Nov 20, 2021
1 minute read

Keep in mind that codes vary from jurisdiction to jurisdiction, and these are minimums only.

Interior Lighting

Detached garages that are provided with electricity must have at least one interior light, and this interior light must be controlled by a wall switch. A lighted garage door opener may not be used to satisfy this requirement, even if the light is controlled by its own switch.

Exterior Lighting

Detached garages with electricity must have a light outside each grade level egress door, and this light must be controlled by a wall switch or motion sensor. The code does not consider the vehicle door to be an egress door.

Electrical Outlets

Those detached garages with electricity must have at least one electrical outlet. There are no restrictions on where the outlet or outlets may be placed.

GFCI Protection

Electrical outlets in detached garages must be protected by a ground fault circuit interrupter (GFCI).

The Drip Cap

  • The International Residential Code, the most widely adopted building code in the U.S., does not require that detached garages be provided with electricity.
  • However, the code does set forth certain requirements for detached garages that are provided with electricity.
  • Detached garages that are provided with electricity must have at least one interior light, and this interior light must be controlled by a wall switch.

Photo Credits

electrical box image by jimcox40 from Fotolia.com

electrical box image by jimcox40 from Fotolia.com

David Brown

David Brown began his writing career while still in college, writing and editing research grants and scientific papers. His work has appeared in such journals as "The Journal of Clinical Investigation" and "Gastroenterology." He currently…

Sponsored
HomeSteady Logo

HomeSteady is the ultimate guide for all your household needs, from cleaning and HVAC to electrical, DIY and maintenance.

Property of TechnologyAdvice. © 2026 TechnologyAdvice. All Rights Reserved

Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.