The simplest way of storing pallets is floor storage, which is typically arranged in lanes. The depth of a lane is the number of pallets stored back-to-back away from the pick aisle. The height of a lane is normally measured as the maximum number of pallets that can be stacked one on top of each other, which is determined by pallet weight, fragility, number of cartons per pallet, and so on. Note that the entire footprint of a lane is reserved for a sku if any part of the lane is currently storing a pallet. This rule is almost always applied, since if more than one sku was stored in a lane, some pallets may be double-handled during retrieval, which could offset any space savings. Also, it becomes harder to keep track of where product is stored. For similar reasons, each column is devoted to a single sku.
This loss of space is called honey-combing.