Flow racks have multiple storage levels with skate wheels, rollers, or decking that allow items at the back of the racks to glide forward as items at the front of the racks are removed, which boosts efficiency in inventory and order-picking tasks. Flow racks are used in the food and beverage industry, warehouses, and other applications requiring high-density, high-volume storage and movement of the same or similar products. They support storage and inventory initiatives such as first-in, first-out (FIFO). Stationary flow racks are suitable for areas where they will not be moved often, while mobile flow racks can roll to allow for cleaning or repositioning. Components such as uprights, beams, and flow lanes can be purchased to repair, upgrade, or add onto existing flow racks.