Simple shelving is the most basic warehouse storage mode and the least expensive. The shelves are shallow: 18 or 24 inches are typical, for example, but 36-inch-deep shelf is sometimes used for larger cartons. Because the shelves are shallow, any significant quantity of a SKU must spread out along the pick face. This reduces SKU-density and therefore tends to reduce pick density, increase travel time, and reduce picks/person-hour.
SKUs which occupy more than one shelf of bin-shelving are candidates for storage in another mode that will enable greater SKU-density. A typical pick rate from bin-shelving is 50–100 picks/person-hour. (Of course this and the pick rates for any equipment depends on which SKUs are stored there.) With shelving, both picking and restocking must be done from the pick-face and so, to avoid interference, must be scheduled at different times. This can mean working an additional shift.
Shelving
Pallet Racking
Much like, pallet racking, shelving is made up of upright frames, but instead of being connected by horizontal beams, they are connected by shelves. These are typically used for lighter, smaller items when pallets are not required. Wide Span Shelving is typically a lighter duty version of a standard pallet rack. It provides the same versatility, access, and sizing as selective pallet racking, but is used when the overall capacity stored is less than light duty pallet rack standards.
This shelving isn’t typically designed for pallet storage, but is ideal for cartons, hand stacked storage, bin or tote storage, etc. Wide span shelving is most common in loose pick, totes, and small item storage. It can also be stacked to form shelf supported mezzanine structures that can maximize vertical storage.
Another important consideration in choosing warehouse shelving units is the difficulty in assembly. Some shelving requires nuts, bolts and tools to assemble, while other styles are boltless and connect together easily without the need for tools.
Other options to consider are the size and dimensions of the space available for the shelving, the weight of the stored items and if you need a single freestanding unit or would prefer the option of adding on in the future.
As a partner of MetalsistemUSA, we are the first, and currently, the only vendor in the USA to offer world-class products from Metalsistem. Metalsistem shelving products are known worldwide for their shelving that is both incredibly strong and incredibly light weight.