Full-extension JARKE E-Z Glide Shelf Racks ease loading and unloading of heavy dies, engine parts, tools, or fixtures. Retracted shelves rest at inclines to prevent arbitrary opening that may be caused by vibration. Shelves adjust on 2" centers. Welded and bolted construction features solid steel top deck for extra rigidity. Racks provide easy access for forklifts and cranes. Begin with the starter and add-on to create entire rows of bulk storage. Racks must be anchored to the floor. Ships unassembled. Made in USA.