Cellular layouts, especially U-shaped cells, are commonly used in lean manufacturing environments to create workplace efficiency and flexibility.  These layouts ensure the shortest part movement distance, allow for sharing of work, provides a foundation for one piece flow, and reduces the amount of floor space required.  Some key elements of cellular layouts include:

• Defined preventive maintenance requirements
• Quick changeover procedures are standardized
• Machines and tables are on rollers whenever possible for rapid reconfiguration
• Equipment is not hard-wired or piped
• Operators are cross-trained on all processes and machines
• Usually the cells operate in a counter-clockwise direction
• Arrange equipment by processing sequence, not by equipment type