What is a remodel box?

A remodel box is specifically designed for retrofitting into existing structures, making option C the correct choice. These boxes are constructed in a way that allows them to be installed into walls or ceilings where there may not be any existing structural support, such as framing studs.

One of the key features of remodel boxes is that they often include clips or tabs that secure the box to the surrounding material, providing a stable installation in finished surfaces like drywall. This is particularly useful in renovation scenarios where new electrical fixtures are added without having to open up walls or ceilings extensively.

In contrast, options referring to boxes for outdoor installations or those meant exclusively for new construction do not accurately describe the function and intent of a remodel box. Also, referring to all-purpose boxes ignores the specific design and purpose that a remodel box serves in electrical installations. Thus, the correct identification of a remodel box is essential for proper installation practices in electrical work, particularly in renovation projects.