When learning how to create SOLIDWORKS assemblies, mates are normally one of the first tools that are learned. Simple mates such as coincident mates, distance mates, and concentric mates are all taught, but some of the more advanced mates are skipped over. In this video we learn how to use the width mate. Width mates vary from the standard mates because they require two selections from each part and simulate a midpoint between those two planes to create a mate. Using the width mate becomes very useful and can center parts even if their relationship to the original planes are different. This video was created by Christopher Nelson.