An adjustable hinge assembly includes a first hinge leaf, a second hinge leaf hinge-coupled to the first hinge leaf, and a hinge pin. The first hinge leaf defines a first knuckle hole corresponding to the hinge pin, and the second hinge leaf defines a second knuckle hole corresponding to the hinge pin. The first hinge leaf is hinge-coupled to the second hinge leaf by the hinge pin, the first knuckle hole, and the second knuckle hole. The hinge pin is movable within the first knuckle hole to adjust a position of the first hinge leaf relative to the second hinge leaf.