What is a coped joint?

A coped joint refers to a method of joining two pieces of material, typically in woodworking or construction, where one piece is cut to match the profile of the other. This type of joint is often used to create a tight fit around irregular surfaces, allowing for a more seamless integration of materials. It is particularly common in trim work where angles need to be joined, such as at corners or along curved surfaces.

In the context of the options, the definition provided corresponds with the concept of fitting woodwork to irregular surfaces. This technique not only enhances the aesthetic appeal of a structure but also provides a stronger joint by maximizing surface contact between the two pieces being joined.

The other options do not align with the specific definition of a coped joint. For instance, a joint for electrical wiring describes a different construction process, while structural support pertains to load-bearing connections, which are separate from the specific purpose of a coped joint in woodworking. The roofing joint mentioned in the last option does not represent the accurate function or application of a coped joint, as it is more relevant to woodwork and not primarily used in roofing applications.