What is the difference between 14/2 and 12/2 wire?

14/2 is thinner (14-gauge) rated for 15-amp circuits, while 12/2 is thicker (12-gauge) rated for 20-amp circuits. Use 14/2 for lighting and 12/2 for kitchen, bathroom, and high-draw circuits.

Can 14/2 wire be used for outlets?

Yes, 14/2 is suitable for general-purpose 15-amp outlet circuits in bedrooms and living rooms. Kitchen, bathroom, and laundry outlets require 12/2 wire on 20-amp circuits.

14/2 Romex NM-B WireGenerating image…

Electrical

Wire

$25-$120 per 250-foot roll

14/2 Romex NM-B Wire (2026)

Prepared by Lumberama's Building Materials Team

|Last updated May 15, 2026|Sources & methodology

14/2 Romex NM-B wire is the standard wiring for 15-amp residential circuits including lighting, switches, and general-purpose outlets. It contains two insulated 14-gauge copper conductors (hot and neutral) plus a bare ground wire, all enclosed in a non-metallic PVC sheathing. UL listed and NEC compliant.

Key Features

Two 14-AWG copper conductors plus ground
Non-metallic PVC sheathing
Color-coded white outer jacket
UL listed and NEC compliant
Rated for 15-amp circuits

Specifications

100

250 feet

Applications

Lighting circuits
Switch legs
General-purpose outlets
Smoke detectors
Ceiling fans (light only)

Installation Overview

Run cable through drilled holes in framing, maintaining proper stapling every 4.5 feet and within 12 inches of each box. Strip sheathing and make connections inside approved electrical boxes. Do not exceed 15-amp breaker rating.

Pros & Cons

Pros

✓ Standard for most lighting circuits
✓ Less expensive than 12/2
✓ Easier to work with than heavier gauge
✓ Widely available

Cons

✗ Limited to 15-amp circuits
✗ Cannot be used in conduit underground
✗ Not rated for wet locations
✗ Must be protected from physical damage

Top Brands

Southwire

Code Requirements

NEC Article 334 governs NM-B cable. Must be used with 15-amp breakers only. Not permitted in commercial buildings, wet locations, or embedded in concrete. Must be stapled per NEC 334.30.

Buying Tips

Buy in 250-foot rolls for the best price per foot on large projects. White jacket indicates 14-gauge. Never use 14/2 on a 20-amp breaker. Plan your circuit layout before purchasing to avoid waste.