Check local electrical codes and permit requirements
Call utility locating services before digging
Decide the shed’s power needs and load size
Choose the power source and feeder route
Use a properly sized underground feeder cable
Install a dedicated circuit from the main panel
Use conduit where required by code
Maintain proper burial depth for underground wiring
Install a subpanel in the shed if multiple circuits are needed
Include a grounding system for the shed
Separate neutral and ground in the subpanel
Install GFCI protection where required
Use weatherproof boxes, fittings, and outlets
Provide a disconnecting means if required by code
Seal all exterior penetrations against moisture
Test all circuits before energizing
Hire a licensed electrician if unsure or required by law