Abstract: An exercise device includes a pair of spaced side rails and a transverse end rail extending between the side rails. The side rails are supported so as to be capable of bearing the weight of an exerciser along their length. The side rails are spaced from a supporting surface, and are capable of adjustable up-down movement relative to the supporting surface. The transverse end rail is also capable of adjustable up-down movement relative to the spaced side rails. The side rails are closer together at one end than at the other, with the side rails including portions extending in substantially parallel relation to each other and then diverging away from each other toward the other end. The exercise device is capable of use in both an indoor and outdoor environment, and base brackets are provided to support the exercise device in either environment. The device further includes an anti-theft dumbbell rank for storage of dumbbells when the exercise device is used in an outdoor environment.