Four-inch square boxes are available with all of the following depths except?

Four-inch square boxes are standardized electrical boxes used in various installations. They come in different depths to accommodate the volume needed for wiring and devices. The common depths for four-inch square boxes typically include 2 inches, 3 inches, and 4 inches, which provide enough space for sufficient wire connections and device fittings.

The depth of 1 inch, however, is not a standard offering for four-inch square boxes. Standard electrical codes and practices require certain minimum depths to ensure safety, accessibility, and functionality. This ensures that boxes can safely house the wiring and accommodate any devices without compromising the integrity of the wiring system or creating potential hazards.

Understanding these standards is crucial for compliance with electrical codes and for ensuring a safe and effective electrical installation.