A cradle unit for supporting metal coils, and other cylindrical objects, consists of two, parallel and separate saddles made of polyurethane or other material having a hardness range of between 50 Shore A and 90 Shore D, which saddles are connected together via a pair of parallel steel angle-brackets that provide inherent structural integrity to the cradle unit itself, while still allowing the unit to conform to the shape or level of the underlying support structure. The single cradle unit may be as a mobile support-device, or may be bolted or otherwise attached to a surface for a specific location of the stored product. The cradle unit is generally concave-shaped and has a first main or central lower concave curvature of a first radius, and a middle or secondary transitional curvature that connects the first main lower curvature to an upper, tertiary concave curvature of a second radius greater than the first radius, so that coils or rolls of different diameter may be safely and firmly supported. In a modification, a pair of rails are provided for fixedly mounting and supporting a plurality of support cradles, where each support cradle is held in place by the rails via metal pins protruding or projecting from the bottom surface of the support cradle that are received in openings formed the rails, whereby no lateral or longitudinal movement or sliding of the support cradles is possible.