Shed Plans Shed Electrical and Lighting

Question 1

What electrical service size is typically sufficient for a basic shed workshop with lights and a few outlets?

Accepted Answer

60-amp sub-panel

Answer

A 60-amp sub-panel is the most common recommendation for a workshop shed, providing enough capacity for lighting, general outlets, and a small air compressor or power tool.

Question 2

What type of wire is required for an underground run from the house to a detached shed?

Accepted Answer

UF-B (underground feeder) cable or conduit with THWN wire

Answer

UF-B cable is rated for direct burial, or THWN wire pulled through rigid conduit provides the moisture resistance required for underground electrical runs.

Question 3

How deep must a direct-burial electrical cable be buried for a residential shed run?

Accepted Answer

12 inches

Answer

Direct-burial UF-B cable must be buried at least 24 inches deep per NEC 300.5, though conduit allows a shallower 18-inch depth for certain applications.

Question 4

What device is required by code on all outdoor and bathroom circuits in a shed?

Accepted Answer

GFCI (Ground Fault Circuit Interrupter) outlets or breaker

Answer

GFCI protection is required by the NEC for all outdoor, garage, and damp/wet location receptacles to protect against ground fault electrocution hazards.

Question 5

Which conduit type is recommended for exposed electrical wiring inside a wood-framed shed?

Accepted Answer

EMT (electrical metallic tubing)

Answer

EMT conduit is preferred for exposed interior runs in sheds because it is rigid, durable, and provides a ground path, though PVC is also acceptable indoors.

Shed Plans Practice Test

Shed Plans Practice Test

Shed Plans Shed Electrical and Lighting