What is the minimum depth requirement for a box intended to enclose flush devices supplied by 14 AWG or smaller conductors?

The minimum depth requirement for a box that is designed to enclose flush devices supplied by conductors of size 14 AWG or smaller is specified to be 15/16 inch. This requirement is outlined in the National Electrical Code (NEC), which ensures that electrical boxes have sufficient depth to accommodate the required hardware and wiring without overcrowding.

A box that is at least 15/16 inch deep allows adequate space for the necessary connections and helps prevent potential hazards, such as overheating or short circuits, which can arise from improper installation due to inadequate space.

While deeper boxes do exist and may be suitable for applications requiring more wiring or larger devices, the minimum standard set at 15/16 inch is specifically tailored for 14 AWG conductors and is important for maintaining safety and compliance in residential wiring practices. This standard ensures that installations are practical and safe, accommodating the necessary clearance for conductors and devices.