A chain holder includes a first portion, a second portion, a third portion connecting the first portion with the third portion, a first hook portion extending from the first portion, and a second hook portion extending from the second portion. The first portion and the second portion may be disposed substantially in parallel with each other. The third portion may be disposed substantially perpendicular to the first portion and the second portion. A chain holder may include a first projection and a second projection. The first projection may extend inward from the first portion and the second projection may extend inward from the second portion. The first projection and the second projection may be substantially aligned with each other. A distance from the first projection to the third portion corresponds to a height of a trailer assembly component.