The product size: length by width by depth.   The total area inside a truck trailer: the length times the width times the height of the trailer is its cube space.  The true storage capacity of a building: L x W x H.

Cube Utilization

The ratio of space occupied with material to total cubic space available, usually expressed as a percentage.

Cubed Out

A condition where all space in a trailer or container has been completely filled. The term “cubed out” is often used when one has completely filled the trailer or container but is still below the weight capacity. Also see Weighted out. Cycle Count: Process of regularly scheduled inventory counts (usually daily) that “cycle” through your inventory from one item to another

Curved Belt Conveyor

A unit load belt conveyor usually operating horizontally through a 90° or 180° turn.

Cycle Time

Time for a material handling machine to perform one cycle (pick, store, move).  The total time for a process from start to completion.


Distribution center

Decision Point Branches

Intersections or spurs in the guide path or conveyor path

Dedicated Aisles 

An aisle in a warehouse serving only one function (e.g. for order selection, product storage).

Dedicated Storage

A storage policy (usually contrasted with random storage) in which a warehouse location is dedicated to house a specific SKU or SKUs.


The quantity that customers require of a particular item.


An individual technically competent through knowledge, experience, and familiarity with legalities, to design rack storage systems

Dimensional Weight

The formula used to determine freight charges when the minimum weight-to-volume ratio has not been met. Actual weight and dim weight are compared, and the larger weight is used for the freight calculation. Dim weight was historically calculated as (Length x Width x Height)/194 (in inches). However, recently the carriers have been creating more complex dim weight policies. So depending on the carrier, destination and service, one may be using a different divisor.  The purpose of dimensional weights is to allow the carriers to more effectively apply freight charges when very lightweight but bulky shipments occur which can quickly fill up available space yet not provide enough revenue (based on weight-based fees) to cover costs. Aka: Dim weight Distribution

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