Jarke E-Z Glide Roll Out Shelving - Starter and Add-on units support 2,000 lbs. per shelf with full 100% extension. Shelves are adjustable in height based on 2-inch centers and can extend with as little as 15 lbs. of force. The modular construction allows for bolt-together expansion of multiple units. Horizontal access is available via forklift truck, cart, hand truck, or any height-adjusting bed method, while vertical access is facilitated by a crane, manipulator, or monorail system. Featuring welded and bolted construction, the shelving is easy to install and ships knocked down to save on freight. The Starter Unit includes two uprights and shelving, while Add-on units include one upright and shelving.