14-gauge wire is a type of electrical wire that is commonly used in residential and commercial wiring projects. The "14-gauge" refers to the thickness of the wire, with a lower number indicating a thicker wire. This size is suitable for carrying electrical current safely, typically up to 15 amps, making it ideal for lighting circuits and general-purpose outlets. This wire is made of copper or aluminum and is often insulated to prevent electrical shock and short circuits. 14-gauge wire is easy to work with and is widely available, making it a popular choice for DIY enthusiasts and professional electricians alike.