... -density storage and eliminates wasted aisle space.First in-last out or first in-first out order picking.Structural steel construction for durability.Standard ... ratio of warehouse,2, goods can be first in first out or first in-last out.3, structural steel constraction for durality.4, pallet ... , and width.3, how many layers of the racking?4, your pallet size.5, max weight of pallet with cargo on ...