A combination of a set of free weight plates of at least two different sizes and a rack therefor. In the set of two or more free weight plates of different sizes, each plate has a round center bar hole and at least one racking hole. The size, shape or placement of the racking hole varies from one size weight plate to another. The rack has a set of at least two parallel, substantially horizontal posts that corresponds to each size weight plate in the set of plates. Each set of posts includes a bar hole post and at least one racking hole post that is complementary in size, shape and location to the at least one racking hole of the corresponding size weight plate.